nice to hear critical points from an ebike builder who clearly has experimented with various configurations. more voltage, less amps = less heat….with a power increase. I built a bafang 750 watt coupled to a nuvinci rear hub with autoshift. I have it geared low with a 34 narrow wide chainring on the bafang, and a 18 tooth on the nuvinci. Motor always spins easily, and climbs ‘til it throws you off the back. And only use a 10 amp/hr 48 volt battery, which lasts a very long time, motor is never amping up, even from a standstill, because the autoshift always starts you in the lowest gearing. These cv hubs compliment the mid drives very well….only one chainline, so its super low maintainance…no derailleur😀 cheers and happy new year!
Well done. I was particularly interested in the logic you shared using the nylon gear. Without being an engineer on the team that designed this motor I believe that is the reason for using nylon. It's a perishable part that keeps you from destroying the motor. no questions about it. Thanks again. well done.
Cheers Steve. Still on the same one all these years later. Seem a few folks burn up stators that would likely have been saved with a nylon gear that went to the steel version. Cheers
Another really good video. Just an fyi it appears while doing your hill climb comparison you had the graphics reversed. It said stock controller while ripping up the hill with the bac 800. Very much looking forward to your lighting video and what you come up with. I have been looking at Supernova m99 pure + and the Light and Motion options.
I've been watching a lot of these videos ,as im going to set up my own ebike with a mid bafang, still deciding what mtb to buy but have decided on a 1000 to 1500w motor ,and you my friend are the most informed and savvy expert on this subject ,so glad i stumbled on to you ,ive listened carefully to your every word, Thanks, ,your the man...massive respect...edit, forgot to ask ,how much for the fatboy, ? save me the build.....
Fellow Brit here, although still live in N.E. England where there are some hills. Originally started watching your videos because yours were the only ones i could find with hills to see how the BBSHD coped. Originally was thinking of a rear hub motor, but after your videos and more research, decided on the BBSHD which should be arriving tomorrow. Must admit I was slightly confused by the captions, but can see others have pointed out they were muddled up. Keep up the excellent videos and looking forward to the new projects.
Yeah I messed up lol. I will change it when I get a second. Awesome you got your motor! Good luck with those hills and the build. Hubs tend to suffer on hills. My Mum was from Wakefield!
Thank you for the inclusion, great video. We (ERT + ElectronCycles.co.uk) spent a long time working out how to use gears and overcoming the Nylon gear thing (we also spent a fortune developing a metal gear, but abandoned it we we realise that the next thing to fail could be disastrous- motor windings). For non fat bikes we recommend gearing 42T F and 28T rear for on 29er or drop the rear to 26T for a 26” rim. Like the man said, let the motor spin! Thank you Captain, Ay Ay skipper!!!
Have you considered developing a controller kit for the Bafang Ultra G510? I built a DIY frame for it but need a few more amps to easily maintain the flow of traffic on local roads (usually 65kph+). I'm currently testing it with 58T/17T (6.1 gain ratio) single speed but plan to add a Nexus 3 IGH for extra gearing to help out at startups and at top speed. The ultra gets hot but comes with the metal reduction gear, hasn't given me any issues yet at 1500w with the stock controller. I've seen a few guys fit the phaserunner inside the Ultra but it'd be nice to have a more plug n play option. Otherwise hopefully Bafang will get the hint and give us a Super Hyper Ultra Max motor built to handle higher voltage and current ;)
eBikeaholic it is on the map but we’re a bit too busy at the moment. The plug and play bit may be a little more complicated too. We can definitely do throttle wise and actually have a rough map ready now (have to try it which with a bac 2000 will fly along. I’ve wpso all run mine at 70A x 52v butbdidnget abut hot. Will handle 60 a definitely
But wont high rpm be a waste of amps? I plan to build mid-drive bike with bafang motor , right now i have 250w geared hub motor and it very very powerful and torqy at 3-15km/h and then gets weaker and weaker , tops at 30km/h where it looses voltage but does not give any acceleration, should not it be better to ride like a diesel car? high gear , low throttle, low rpm ? to maximize range and be easy on motor?
I am not a complete expert but in general electric motors love to spin fast in order to shed heat. If you can max the rpm in a given gear then the amps will fall off due to back emf. That is why the controller employs field weakening. Diesel motors employ the compression to get its torque I believe. I am not sure this helps. If you post this on the discord we can have a good discussion tho. Its a fascinating topic! Cheers
thank you for this video, a lot of people online talk about BBSHD's destroying drive trains left right and center, glad to know that replacing my derailer won't be part of regular chain maintenance haha.
Sorry if this has already been mentioned in the video or comments, but I think nylon gears are also useful in the event of motor failure as it's cheaper to replace a single damaged nylon gear than the whole motor when it tears itself apart! Thanks for all the videos, learning loads :)
No I missed that one! Thanks for posting this. I am quite sure that the nylon is cheaper. I have also heard it's a failure point for if a limb was to get jammed for any reason. The nylon would then fail when a steel would keep going much longer and do much more injury.. Not 100% on that one tho. Cheers!
I love your thorough and smart clips. I believe the ludicrous change is merely paralleling in 3 surface mount resistors in the feedback sense circuit. This halves the resistance that generates the sense voltage in each of the phases, which makes the feedback circuit “think” It is seeing 25 Amps, when it is really seeing 50 amps. When you connect to the Controller to flash the limit, if you want 50 amp peak, you enter 25. This is consistent with the thread that the sense resistor values are halved. I was not under the impression that the ludi comes with a steel gear. I was told by them they do not change it. This is circa early 2020. Thanks for your excellent review. I need to learn about ASI Vs phaserunner..... thanks sir Codswallop!
I figured they were doing something with the existing circuits. The 25 amps thing rings a bell. If you have a look online luna have just released a new version of their bbshd controller. Same size but using the VESC platform. It is quite a step up for them. Not seen it on a bike or running a bike so talk is cheap but I hope its good. You are welcome to join the channel discord if you would like to learn more about the ASI and other controllers. discord.gg/UBYptPC4Ty
Thanks again Captain. I just picked up a Trek Farley 5 and a Surly Ice Cream Truck. I’m gonna build out the ICT first. CYC has been accepting orders for their new motor with the ASI controller for a couple weeks now. It takes 1-3 months to arrive and is more expensive. I’m gonna have to watch this video a few more times before deciding on a unit. I live in a very warm climate area and I tend to push my equipment so I’ve got that to factor in.
Cyc can handle 3000w and if you keep it pulling 3000w in hot weather, you might burn it, so if you limit the power to 1500w, you still getting a bbshd rival but using half power you could use so not heating at up as much
I have run the cyc through the same route as the bbshd and it's barely got warm. Even when Alan at ERT put it through 72 volts 12000 rpm it barely broke the 50 degree C mark. He lives in LA so pretty hot there. It will push 3kw all day long :)
@@HighVoltageKits As I have discussed with you before, I was waiting to see how well the X1 held up for long term reliability (something that is known with the BBSHD) And now they've already released the gen 2 model (in typical fashion of a Chinese company). It is 5kW now at 72v and capable of out performing a Sur-Ron on a donor DH bike they claim...
The timing of this video is perfect. Thanks Captain, your videos have guided me in so many ways. I have many a change to make to my setup, but taking your advice and doing a 1x1 drivetrain was a step in the right direction!!!
For people worrying about melting the gears, General Motors used nylon timing gears in their engines for years, which I would imagine get a bit hotter than this small electric motor. If people are actually melting these gears, it's probably a poor quality or improper grease that's not dissipating heat or reacting chemically with the nylon and causing premature failure. Even with the things you mention in the video, I'd still put money on the lubrication cooking over the gear itself melting. I'm quite enjoying your videos, they're very informative for someone looking at building one of these bikes.
You make a very good point. In reality what happens is that it softens to the point where the forces sheer of enough teeth to stop it functioning. But full melt no. The stresses might be a bit higher in this application as it is the main reduction gear. But the point is a valid one. If the user gears the bike correctly it should not happen just like with general motors.
Excellent video Capt., one correction on the gearing that melted the nylon gear. It was a Luna Mighty MIni (I think they call it) 30T on the front, not a 36 and correctly an 11T on the back. All the info you gave on RPM and gearing was spot on. These BBSHD motors are built like tanks and if you give it throttle it doesn't matter what gear your in, it's gonna turn. But the extra stress from a high gear ratio to get it moving and keep it there is what creates the heat. Since I dropped down to a lower gear ratio(1 to 1), which I learned from watching your video's, not only are the temps much lower, but I really don't notice a difference in speed. As you correctly pointed out, in the higher gear it won't turn as fast. The lower gear turns faster, ergo, ( I had to throw that in there to try and make my gear melting self sound smarter) but the same speed. My cassette is actually set up were I can use a more than one to one ratio when I need it. Since I have a 30T on the front, I have 3 larger gears on the back I can use. I haven't tested it yet but I am going to try it on a slope that is at least 40% grade. I'll measure it to know for sure and maybe even make a video. But for everything except the rare super steep slope, I plan to run a 1 to 1 and never change gears. Acceleration is better and top speed stays the same. Thanks for all your help
I know this video is a year old, but I watch a lot of Louis Rossman videos of Louis Rossman Repair Group in New York City. Louis runs a 72 Volt battery on a Bafang BBSHD. He doesn't talk a lot about his bikes but I haven't found anywhere where he said anything negative about that setup. He has built his bikes for speed and rides them to and from work every day. Good video here.
Thanks Dave. If you want to learn more or meet other riders with this system there is the channel discord. discord.gg/YAAjfgc You are most welcome to join. Cheers
Great video, thanks! I seem to remember seeing a video that Justin from Grin Technologies did where he installed a Phaserunner motor controller on a BBSHD and I thought that it fit snugly in the controller cavity after removing the stock controller. I can’t find that video anymore, and I wonder if Bafang made them take it down. I’m glad to learn about the ASI controlller, thanks for posting!
Thats another option. The phaserunner is based on the same circuit boards as the BAC800. They get the boards and put it on their own designed casing. They work pretty closely on it.
Just want to add some to this very informative video. Ive been running bbshd for 3 years and thousands of kms now. I run 60volt and 50 amps. No need to bash Luna for their controller. They did what they though was reasonable at that time. Nobody had BAC controller set up back then. I stripped nylon gear in first few kms after running just 52volts and 50 amps. And motor was nowhere near hot. Temp is not what makes it fail! Its sudden burst of torque at wrong gear. It strips not melts. Ive made and been successfully using bronze gear since. What gets motor hot is long rides at high speed. On the trail with full but short bursts of torque and slower speeds BBSHD can go all day at 3000 watts. Keep gears low spin motor fast. BBSHD can take tons of abuse. BAC+ 72v+ sturmey archer 3speed is my next upgrade.
Good points. I have seen the gear fail in both ways. I guess I always had it geared correctly. Sorry if I came across as harsh on luna. Their efforts on the bbshd are good. I was just looking at a destroyed bbshd this morning. Respect of the gearing key..Thanks for the comment. Cheers
@@HighVoltageKits Yep yep. Luna now has PEET plastic gear. I will give that one a try as well. Want to get my gear "noise" down a bit. Its a bit of a learning curve with BBSHD to sort of feel what gear to be in for given speed and grade. My rule is- if its " light" enough to pedal its good enough to give motor all the beans.
Awesome, thanks for sharing... 72v makes a huge difference and it really shows during the hill climb test, that beast sounds hungry! Good point on having two battery packs. My current Bafang Ultra project is designed to maintain the flow of traffic when the bike lane disappears so I'm struggling with range vs. speed at the moment.
I've been running my Talon 1 since the beginning of July with the BBSHD and the Bac800 with 72v since the beginning of August and I'm just amazed by the power of it and I've been running 55 amps through it after my scare about the motor being blown and having it come back to life after tearing it all apart I decided screw it and set the current limit to 55 to see what it can take and maybe it's because its winter now but I haven't had any heat issues riding to work every day at car speeds with 44t front and 27t rear. I was pretty scared after reading every article and watching videos of people saying the BBSHD can't handle much power but after running over 4500 watts through it every day for about a month and a half now it seems pretty solid.
With the right bike I'm sure it's possible for others. I can't recommend that level on here though. I'll bet it's fun though! At the end of the day it's just a motor if you wreck it repair or swap. Good work! Cheers.
@@glennjrbeck I think it was set up at 45 amps which was perfectly fine but my bac800 had issues and died a while later. Currently running CYC x1 pro gen 2 with a stock controller for now until the bac855 is ready for it.
Thank you for sharing! I'm about to sell 2 of my hub motor bikes to build a mid drive and I saw people saying that controller with the Bafang BBSHD motor were amazing.. Little bit more research but I'm sold on the idea. I'll be going with a geared hub with belt drive though. But now with your lesson on the gears and heating the motor I have a better idea of what to look for. I'm going to over power a hub motor with that controller first. I have a motor that's been through hell and just won't die. I have to know what it's limits are, then I'm going to dissect it and learn how to rewind a motor. Great video, thanks again!
Great video, enjoyed listening to you regarding science and Theory. At the minute I only have a cheap diy hub motor kit installed on my bike. Thinking of jumping up to the Bafang HD. Best wishes Uk
Great advice, it is very clear that you have a lot of common sense, skills & have taken the time to research, put good though into it adding to your experience! I appreciate it, thanks! 👍😁👊
I really want to upgrade my bbs now! I’m glad I didn’t get the upgraded controller from Luna. Only downside to the phaserunner is once you get it up and running you’ll never need to pedal anymore lol
Yeah that's true. One of the good things about the NXT will be the ability to have several riding profiles you can switch between. One could be setup to allow for limited power where peddling is still viable. It's not how I ride but very doable. Cheers!
Interesting listening and it all makes great sense, if your father told you not to labour the engine but to let it spin and don't load it up in a higher gear.
The trick with the bbshd is to run more voltage and stay in low gear to minimize strain. Mine is running on a Phaserunner with 40amps phase weakening and 88volts li-Po. Top speed is 53 mph and I never have to change gears. I get 40-50 miles on a charge. Ive never melted a gear and I've been riding for 2+ years. To increase reliability, I've added heatsinks to the motor and it rarely if ever exceeds 120 degrees F.
Yeah. You nailed it there. My favourite is running 72 volts LiPo. I run 1 to 1 fixed gear. Motor stays within its limits. Still on my nylon as well. Great comment. Cheers.
Capt, I have a 2015 Fatboy with a PF30 bottom bracket. The ID is 46 MM and the overall length is 100MM. I am wondering if you had to use a bottom bracket adapter on your Fatboy and if so what did you use? I have been looking for the right adapter but I can't find a posting with that information. Great videos.
Mine was threaded. Try this link tho. www.ebay.ca/itm/TOKEN-Adapter-for-PF30-46mm-Frame-to-English-Threaded-BSA/192254254161?_trkparms=ispr%3D1&hash=item2cc33f1c51:g:JRkAAOSwEIBea16F
I think Lekkie (lekkie.bike) makes some sort of adapter with "PF30" and "Bafang" in the title (-; lekkie.bike/product/lekkie-bb30-pf30-eccentric-bafang-adapter/
Makes a good deal of sense. I have heard it works as a safety feature if a limb got caught and would fail quicker. I'm not testing that theory tho lol.
I'm so jealous! That things is just badass! I don't know why anybody would buy one of those 250 watt pieces of junk that specialized manufacturers for 10 Grand. When you can build something like that for considerably less.
I will say that although very expensive for a tiny motor the levo bikes are meticulously designed and of very high quality. They serve a purpose. If you want exercise and enjoy tight technical riding. As in proper serious mountain biking they excel. But for me it would be useless and I am guessing most people it would be a waste. Cheers
Great video, I have learned a lot. Have you ever pulled any kind of trailer up a hill? I am hoping to modify my fat tire bike or another hybrid MTN bike to do this, either with camping gear or work equpment, but can't look too illegally powerful Do you get stopped by Police? The central bag housing a battery makes the bike look more illegally powerful than the paniers battery setup because the motor is very discrete.
Thanks Nick. Check this video out from way back in 2018 I think. ruclips.net/video/pOoZACypiFM/видео.html I used to pull a two person trailer when the kids were younger. This was with a stock BBSHD. It was awesome tho. I am not sure how it would work with the High Power stuff as it stands now as the stresses are different. 1700watts was no problem tho! Was great fun passing all the lycra office gang. Never had bother with the police. Mainly because I ride respectfully and don't draw attention. Mostly they remark on the massive tires. The motor gets ignored. If I passed them doing 70 I think it might be different.
@@HighVoltageKits Yes people mostly remark on my tires too, they seem to think it makes the bike faster or more powerful, I explain there is no advantage on a road. one guy said my bike looks like it ought to have machine guns on it, its a bit Mad Max looking. have you, or do you know anyone who took a rear hub motor and converted it to a front hub? It seems like it might work removing the cassette holder and carefully cutting down the axle bolt, adding new threads. After I upgrade the rear motor I will have a spare so I may as well try this with a smaller battery on the front rack and the same old controller, just to give me more power on a hill. another throttle too
Thank you for this video. I didn't see brake cut-off switches on your brakes, do you feel they're unnecessary? I'm doing a Salsa Mukluk build and would like to not use the cut-offs if possible as they're a pain to setup. Thanks
You are welcome. I do have one on there but its hard to see. They can be useful. Mainly cause you can do a soft trigger and change gear etc. Are you doing a stock bbshd or modified?
@@HighVoltageKits A stock bbshd for now. I was going to add that button cut-off on the left side for that type of shift and also a gear shift sensor. Thanks
I'd skip the gear sensor and use the cut off. It only takes a slight touch to cut power. Change gear and back on. The gear sensors are not very responsive imo. Cutoff I like on the back brake.
Hi, Thank’s a lot for the amazing content, it’s very helpful. I have a bbshd on Crossbike which I use for commuting: 40km for one way and 500m elevation when I go back (several routes possible, shortest one with gradients up to 17% for 200m). I use a Cannondale Quick CX1, 9speed 11-32 cassette, Lekkie 46t chainring, 48V 14Ah stock battery. I just ordered the newest ASI Bac 800 kit from ERT and I want to change the battery for significantly more top speed too as I have 30km of flat road. But I’m not sure if a 72V battery make sense as I don’t have (and don’t wish) a throttle. With such a power pack, I’m afraid that I won’t have a comfortable pedaling cadence on the flat and/or be able to benefit from the top speed the motor could deliver. If needed, I can install a Sunrace M991 (11-46t). What’s your opinion, does a 72V battery make sense without a throttle or do I take a risk to overheat the nylon gear? I wish to reach 55-60km/h, maybe a 52V instead is ok too… Thanks for your valuable suggestion. Cheers, Etienne
You will easily hit the speeds you are talking about throttle or not. In terms of peddling it's up to you to balance the power going into the peddles if you want to work as well. The nxt will give you good control over this. In terms of the nylon gear you want to keep the rpms high. I hit over 60kph on the flat with 72 volts on a fatbike. But use a throttle. The pas is restricted to 1200 watts with the NXT. 3250 watts via PAS is not a good idea. That said you will get more top speed with the 72 battery anyway at 1200 watts as the voltage will mean a higher top speed anyway. Really it's a case of experimenting with what fits. I would get a throttle still. You can always unplug it... I think a future nxt update will allow it to be locked out. Hope this helps
Really like your descriptions and the evolution of your build. So would it be fair to say that what you've created here is basically an electric motorcycle? With your 1:1 ratio, do you ever pedal the bike?
Sometimes. I do have two other gears that are a bit higher. The exercise part of the vehicle is something I want to work on. I prefer the term light electric vehicle. But you are correct in your thinking as it's not really a peddle assisted vehicle. Although it can be and with a different chain and gearing could easily be. So restrict the power and you can ride speed restricted trails. You can't do that with a traditional motorcycle. Thanks for the comment. Cheers!
If I still had one yes. I have not used one in a few years. Karl's special source is what you want tho. Great for riding trails. They are quite hard to mess up. Unless you play with the amps too much with the eggrider.
Maybe. But that's beyond my scope. Cheaper to buy a more powerful and better designed motor like the Lighning Rods or the CYC X1. That said if someone makes a water cooled bbshd I love to see it! Cheers
How do you feel about mounting the battery in the back of a pose to the triangle in the front. Does it make a big difference in the way the bike handles and feels?
I have seen many people do this and it has to have an effect of balance. But to how much it would affect your riding is hard to quantify. I have ridden with heavy bags in general commuting no issue. Maybe if you hit a steep hill it might pull the front up a bit. For normal comuting no issues. If you want to ride trails alot it might be better to keep the centre of balance more in the middle. Hope this helps. Maybe ask on endless sphere for people who ride like this also.
Hello, I wonder does battery range increase also when hitting higher rpm in those 42t gears on back or is the same as with higher gear but only motor to struggle more.
Range should increase as the motor at or near max rpm will generally draw less power due to back emf. There are other factors. If you are hitting a hill then the draw will be higher. But much less than trying to power up with a small gear and much less stressful on the motor.. Hope this helps! Cheers
So I have a steel gear I replaced my nylon one with, greased everything up that needed it, put it all back together and installed a ludicrous controller on my fat bike and the motor gets hot as hell. Nothing has failed with over 300 miles on it. I have a mini mighty luna chainring on front and generally switch my gears all around due to the hilly conditions in SF. You have got me wondering what will probably blow out on my motor now😆
Try using a laser thermometer on it. At 52 volts it can get pretty hot. I think 60C is the highest I have found. Its not melted the nylon tho. I think you have some wiggle room.
Great information here Captain, and very thorough. Here in England I'm about to start a build and making decisions on controller, chain rings etc. My last decision is really on why not an IGH? Surely with so much power, a 3 speed simple and robust IGH would be the most reliable? The sturmey or similar? Less issues with chain alignment etc?
hi there, just thought I’d let you known that the Nuvinci hubs work real good with mid drives. Seamless shifting with the Harmony auto shift, just set your cadence you like. shifts to lowest gearing when at standstill. Protects the motor from high gear starts, and subsequent heat issues. I run mine with a 48 volt 10 amp/hr battery, stock controller, and it climbs insane slopes with ease. With one chainline...they work very well together!
have you ever considered the stemy archer internally geared hub in the rear, that would delete all the stock gearing in the back. this will be going on my e bike when the covid stuff is over.
I have. But I have limited resources so I have to consider where best to invest it. Right now the bike works great and I use it a lot. So building a new hub etc is not really where I want to go. But in terms of its fuction, its great. 3KW is meant to be its max.. Which I do go over a bit. Great to use tho. I have a nexus 7 speed on my bamboo bike.
It's not really louder than stock but the pitch gets higher. The cameras are different and the placement as well so it's not a very good comparison in that respect. It sounds much louder on the video to when you are on the bike. Offroad its quieter still.
Glad i watched this Video , I'm getting ready to order a BBSHD Kit and was thinking if i should get a 120mm BB . I have a RSD Mayor Fatbike and it can fit 5 inch plus Tires , has wide Chain stays . I will put my order in today
I definitely needed the 120mm. It's the gear housing that hits the wide chainstays you get on fatbikes. I have a discord channel here. You are welcome to post pictures and questions as you do your build. There are quite a few bbshd builders on there. discord.gg/AnyQRuh
You said you got a 120mm BB motor for this 100mm BB frame. To get the right clearance for a larger chainring? How did you know to do that? If I have a 68/71mm do I upsize as well or just order one of the same designation. Just making sure before I pull the trigger! Keep up the great work with your cool, informative & non-annoying videos! :)
I based it off a video I saw on RUclips where the guy also had a specialized fatboy. The chainstays push the reduction gear out from the bottom bracket. What bike are you converting again?
I don't think you will need the 120mm. The question is how wide do the chain stays go. You could try making a rough template of the bbshd to try the fit. Joseph at em3ev.com is really helpful as well so would be able to advise you. I am thinking that it might need the 100mm but he may know for sure. Also maybe look on endless sphere for a similar build and see what they used.
Great videos! Keep up the good work. Long time BBSHD fat bike enthusiast here. What brake caliper adaptor did you use on the Bluto? The Magura QM42 (160mm to 203mm didn't seem to work for me.
The bike shop I used provided it. I think its just a standard Shimano one. The brakes are still the tekro which I really should change. Money is always tight tho lol. Hope this helps!
Thank you sir. I appreciate the timely response. I nabbed a clear screenshot from the video. I'll just show my LBS what is needed from that. There is nothing wrong with Tektro brakes. Been using them for years with no issues. Thanks again. Fat bikes with BBSHD's are the best (in our humble opinion). A week after my riding my first build, I just had to build another one to share the experience with others. If nothing else, it provides spare parts immediately. :)
Very informative video! Looking to convert a bike this spring once our Canadian snow melts in Ontario. Had a Crystalyte front hub like 10 years ago which corroded from winter condensation. Bought a lifepo battery from Grin which was the worst thing I ever bought. It would self discharge and go out of balance within days. Sent it back for service and it was no better.Got a whole 1000km out of it. I bought a Yamaha dualsport which was way better for the environment and my pocket book than that useless blob of crap. So anyways, which motor do you recommend? I want to go far and not crazy fast like you.
Sorry to hear about the battery. I have use their Satiator charger and it is a very well made bit of kit. I must admit I have not used that particular battery chemistry though. I usually push the power a bit in my videos but I can get a very good range just by dialing down the power. The one day it was super icy I set it to 1500 watts max and cruised 6km for the loss of 5% of the battery. In terms of motors either the BBSHD as I have used it or the CYC would work great. The thing about having power is you don't have to use it... but its there if you need to. I could and do go out on long runs in the bush and on gravel roads etc. A 25 amp hour pack can provide hours and hours of riding if you drop the speeds back to 30kph. The CYC has torque sensing now as well which is good although I can't say what its like as I am on the Gen 1 motor and its only just been finalized.
Is it fine to run a 72V battery with the bafang motor and bafang controller then? I know.u say the aftermarket controller is way better... but im buying all the parts from scratch now and dont have the extra cash for that . Id rather buy a 72V battery now if it will work thab a 48 or 52v now and then have to change it later... what do u think? Go for it? Bafang BBSHD + 72V bat with bafang controller, bafang chainwheel (can upgrade later to leccie)... ?
The stock controller on a bbshd will not take 72 volts. 52 max. Why don't you join the channel discord and post questions on there. Lots of builders can give you advice! discord.gg/YAAjfgc Might even sell you some second hand parts etc. Cheers
How do you know what rpm you’re running? The motor on a 52v battery should be around 3700rpm. Its output spins at 160 rpm x 23:1 reduction. I know with higher voltage and field weakening you’ll gain a bit, but not that much
You gain a massive amount of rpm with the right controller and tuning. I am getting up to 13000 rpm loaded and over 18,000 unloaded. With a 52 volt battery it’s about 9000 peak loaded. Well over double the max stock at that voltage. The rpm is being recorded via the ASI Bluetooth app during the ride.
Interesting. But something seems not right with that. I’m not sure where it is getting that information from. But that’s not how electric motors work. They get their RPM from the way they are wound, and the applied voltage. There is nothing else a controller can do except for field weakening. But that will not make those type of gains. You would be going over 150km/h if the motor was spinning that fast. The output after reduction would be 565 rpm btw. Stock is 160. There’s something wrong. It’s a really good and informative video video, so I’m not trying to give you a hard time. But I would definitely look into that.
@@HighVoltageKits I think I got it. Someone else mentioned it. I think your controller is reading the poles. The bbshd has 4 pole pairs. 13,000 rpm / 4 = 3250. Which would be a proper rpm for the motor to spin at 52v. But mechanically, the rotor is spinning at 3250rpm and the chainring is spinning at 150rpm or so
@victorvannatter312 nope. The bbshd has five pole pairs. The rpm is 13,000 and the data is coming directly from the controller. It’s using field weakening to boost the max RPM of the motor.
Sorry I missed this. There are lots of videos on the channel of this build. It’s 100% possible with field weakening. The top speed on a bike is 65-70kph with a 1:1 ratio to the back wheel.
@@HighVoltageKits That is what I am finding. Although, it would seem I am not the only one having this thought. The marketing is starting to address torque issues on the internal gear hubs.
I must have missed something. In this video, you label the slower version of the hill climb with the better controller and 72v battery. Much faster climb is labeled as stock BBHSD??
Hiya mate sorry to miver but I've got ton a phaserunner coming from your neck of the woods canada am running 52v on 1000w bsshd want to run throttle only coz don't wana use cycle analyst will I need speedometer or do run senor less I've looked at pro gaming aswel an looks litle daunting eny chance of bit of advice thx captain aswel luv the vids BTW
Thanks mate. I know Grin have a few setup videos including one on the bbshd. I am not sure if it can be run sensorless. Mine is on sensorless run hall start. The phase runner is based on the ASI bac800 but with a custom form factor. There should be lots of support stuff on Grins website. I am not sure if you are able to run it without the display or not. I had thought the cycle analyst was pretty integral to processing the throttle signal. You are welcome to post pictures on my discord. I can setup a phase runner channel perhaps. If you search under Grin phaserunner bbshd its the top link on youtube. Discord is discord.gg/YAAjfgc
My bbshd has been sitting unused in two years upgraded to a ERT 84v external controller and destroyed the nylon gear..Im going to get her back up this summer and running with steel gear replacement. My cheap 48v chinese battery still has a charge but its been abused bms died so I just cut it out, should probably check to see if cells are balanced manually before I get her back on the road. Looking into building a 72v battery on a tight budget. Any advice or thoughts would be great
Wrote the coment before getting to end of video interesting thoughts on the nylon gear your logic and why the nylon gear makes sense but if I already have to replace might as well go with steel one for few bucks more
Yeah. I will see the condition of mine in the next while. Apparently they start off a bit noisy but get quieter as they break in..Good luck getting it running!
Hi, just come across your channel. I run 3 fat bikes in Wales UK, thinking of running a BBs-02, or BBSHD on one of them, over buying an E bike with Bosch, Yamaha or Shimano motor. I'm 20st in weight, South Wales is hilly in parts, but like you know, weather not the best throughout the year, and overall temperature not the warmest, if that makes any difference?. If I wanted a bike for carrying maybe a front or rear pannier, to carry a camera or drone, am I looking in the right direction for my first conversion? I ride two bikes with 26in wheels, 65mm wide rims with 4.8in tyres, and one with 26in wheel, 65mm wide and alternate 3.8 or 4in tyres.
Spent loads of time in Wales. Pembroke and Snowdonia mostly. Also, Tywyn way. My sister is near Carmathan so I'll be over next year. Lower temps mean the motor will run cooler overall. Recommend the BBSHD over the 02. There are also some new motors from TOSEVEN. The DM01 is I hope going to be the equivalent of the BBSHD with torque sensing. If you check the video history you can see info on those. You are also welcome on our Discord community. Links in the description.
@@HighVoltageKits Hi again, thanks for the heads up. I got two bikes I been considering running it on, as my two other fattys I'm running 4.8s and the stays and BB are so wide I think I'd be taking that chain line way out away from the BB and too much fuss on the mods taking away the lower gears. I'm either going to try it on a Marin Pine Mountain 27.5+ bike with 3in tyres, or a Ritchey Commando fat bike with narrower stays/BB on a 4in tyre. I'll check out the links of the other brand also. So for instance, as an example, if it was the same motor, same gearing on the bike, in a 500wt, 750, 1000, 1000+ travelling on the flat, at the same speed, which motor would be the most reliable, economical between charges, durable, and go the furthest distance also travelling at the same speed for all units? Remember i'm 20st, and thinking of a pannier for camera gear and maybe a drone also. Snowdonia looks stunning, we got a few nice trails down here just off the M4 motorway also, that's worth a look. Thank you for the previous reply. A friend of mine has a 48wt battery for sale also, so may get lucky with a new setup with two batteries.
The smooth ones would be useless in winter. The ones they came with were ok. Ground control I think they are called. I love the cake eater winter ones I got. You can get them stud less. It's not a simple choice tho.
Can you make a 750 watt bafang middrive run higher watts just by changing the esc ? Currently i run a 750watt setup and a monster 48v 50 ah (2400wh)18650 pack that completely fills the triangle of the frame (cube29er) touring edition lol ps great video content
You should be able to pull higher amps and watts if you switch to an external controller. I am assuming you are running the BBS02? That battery sounds great. Considerations would be what is the max draw on it in terms of Amps. In any case you should be able to boost it to 1500 watts without too much additional stress on it. I would start off by determining your battery specs and then look at controller options of which there are a few choices.
Whats your thoughts on running a 52v 20ah on my bbso2b . Was thinking my p850c will tell me if it charges over 59v . I should have done this rechearch an got the HD . But may buy from luna a bare bone motor next summer .
You should have no issues. The controller will pull what it can. At worst you might need to flash the firmware. You are welcome on my discord chat server if you need help.
I think so. Why not join our Discord group. Post pics etc we can help you put. Best to load the app first discord.gg/2rNd9FFc Let me know if you have problems. Cheers
Hi great video content again. You most definitely have mechanical sympathy this goes along way with powerful middrive converted bikes. They need to be treated with a bit of respect running high voltage in regards to all the things your video covers I think people forget they are on a push bike not a motorbike and just try and go as fast as they can. Another quick question have you re greased your nylon gear yet? Also with the ASI ERT can you set the power levels /peak watts/amps for different power levels your self via the software? I would like to have a lower power mode or modes for long range rides and technical off road sections I would want something fairly similar to say stock bafang bbshd level 2 to 3 where I can use the gears on the cassette. But then have a couple of max power modes making the most out of the controller battery and motor.
Not that I know of but you can use the Eggrider display and change the power levels to your liking in the app and it tells the controller what max power you want just by changing the pedal assist level on the display, I used that when my battery wasn't good enough for 50 amps so I set the pedal assist lower to only use 30. The Eggrider display has been one of the best things I've bought aside from the Bac800 and it can even be used on the stock controller, The support from George and Emil has also been amazing after having some issues getting a locked Bac800 from ERT.
Have not greased it yet. I will in spring but I'm down to one bike so I dont want to mess with it yet. The way the bike is setup here is at a nice comfort zone for a fatbike. A lighter bike you could push a bit more. I could push it further but I'd rather have reliability and use a different bike to do that. I found my sweet spot lol. The egg will adjust anything of riding performance. The bac800 is insanely complex and bacdoor is not great to use. It should get better with developedments this year!
@@MeowBoxie Thanks for the reply ok so I think I need to do some research on the eggrider display then. So you can limit it down or up to what ever you want via the eggrider app. The grin phaserunner also looks like a good option with the cycle analyst it's a hard choice between the 2.
@@HighVoltageKits ok thanks I have not done mine yet either I'm up to nearly 1500 miles but I'm not running close to your power level at the moment any way. I think I may have a go soon. The eggrider sounds like it could be what I'm after but I'm also thinking about phaserunner and ca3 better do some research as I want to be able to use the bike as fairly close to it is now with the stock bafang controller as I do ride it off road alot on trials so I don't need the power all the time and definitely need to use my gears. But I also would like to unleash the full potential of my battery and motor as I do get plenty of opportunities to do that also lol.
@@danielgreen4213 I'd go with the Eggrider just because it's stealthy being so small and if you want a bigger display you can connect your phone, The cycle analyst looks super outdated and bulky on a set of handlebars.
@@HighVoltageKits np but about the controller in our other discussion do you know of any high quality controllers that might be suitable for the cyc x1 pro gen 2 hopefully looking for 7 kw and up
Simple answer is because the stock controller is garbage. Longer answer is there is likely a parameter set somewhere to allow it. Try flashing it with a fresh firmware like Karl's special sauce or similar maybe? I will never touch one of those again except to remove it lol. I should say my stock one did not do this. Throttle overrides PAS or it should do...
@@HighVoltageKits yes theres a speed plug so thats cool . Want to build this like your fatbike cap . Least i now have the motor on route 😉😉😉😉awsome . The 73 100m so going to wait till some faty comes up on gumtree
@@HighVoltageKits will be a few weeks to get the bike i want !!!! Really happy i paid and have the HD cap . And the grin phasse runner leads do have a plug for the speedo i think i may have to buy 750c lcd or maybee keep the nice oneci have. Will post some on your discord mate cool
Hey there! I have a Luna super banana with a bbshd that I wanted to immediately make a single/fixed gear bike out of. Any advice on best controller for upgrading with? I wanted to do 72v at average speeds of 30mph. Which single gear/cog should I choose? What would my mileage be? Any advice/help is greatly appreciated! And thank you so much for making this amazing/informative video :-) 🙏🙏
Best thing is to join our Discord sever and post photos and questions. We make a controller upgrade kit for the BBSHD that comes with the BAC855 and full online support via Discord. A 1 to 1 or close to that will easily get you 30mph with the BBSHD. There is a link to discord in the description of you can go here. highvoltagekits.com/discord
so If I was to build a nice fat tire bike that works the best as it can "steep hill". what do you have on your set up that you say are must haves. will going to a say 50 tool in the rear be better since speed is not a objective. I would say power is 1st them battery life and last speed.
I think if I had used the 36t on the front and used it with a 42t rear or even larger the torque up hills would be improved at the cost of top speed... but still 50kph I estimate! Hope this helps
I think you can make a really good bike with either. It depends on how much power you want to run. Are you thinking stock or modified. On balance the HD is tougher and more reliable. But if you won't use the extra oomf the 02 is totally viable.
Just wondering where I can purchase the connecters for the battery to the motor. I see yours are yellow..are they a special connecter and do you have to do some soldering? I hooked everything up but because the connections that come from the motor to the battery are both male ends it won’t connect. I live up in northern BC and find it hard to source parts, so any tips would be appreciated..thx!
I am sure I can help. I have a ton of connectors I can send up. They are called XT90s Usually you have a female end on the controller and a male end on the battery that has an antispark. Would be good to see some photos tho. We run a discord server you are welcome to join and post. Its a good way to get advice and help with ebikes. discord.gg/zGpNaxRM Best to download the phone app or the pc app and then click on the link. Its basically a bunch of ebike related chatrooms with a messaging system. You can find more about us at www.highvoltagekits.com as well. Hope this helps.
Hey cpt Codswallop, sorry don't know your name yet, I am seriously considering the bac800 for my bbshd build as well as the nxt display because of you, I see you recommend it but I also use alot of PAS mode and I was wondering if it brings any value for non throttle use to upgrade to the bac800 controller
You will get a ton more power just using pas as well as a smoother operation. How come you dont want the throttle tho? If it's due to laws you could always have it unplugged and then plug it in offroad. Or even wire in a switch to disable it?
@@HighVoltageKits ya I used to ride on the don valley trail in Toronto but now moved to Barrie, I have to go on the road to get to work, wasn't sure how the law is here
The law most places in Canada is 500w but throttle is ok. I have the legal option at the push of a button. As long as you ride safely and show courtesy to others I cant imagine you having issues in Barrie. Cheers
Hey still doing the giveaway for eggriderv2? Just got my hdd2 bafang 750 with 52volt 12amp I get 27mph now how can I get more.46 chain ring.with 9 cassette in the rear with smallest gear in the rear about 27mph .thsnks in advance
Thats pretty decent for that setup. You can push more into the motor potentially. Join the discord and post in the builds and see what people are using. Link in the description. Cheers
I have 250w middrive yamaha motter..is it possible for me to covert it to a throttle only to do at least 25mph...its a giant fallon hard tail with a 500w battery?? Any help would be appreciated
No its a giant hard tail mountain bike...2021 model am not sure what they peak at? Trying tofind put if i can get more watts out of the motter then put a throttle on to it...our just put a hub motter on an hook it up to my stock 500w battery
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
nice to hear critical points from an ebike builder who clearly has experimented with various configurations. more voltage, less amps = less heat….with a power increase. I built a bafang 750 watt coupled to a nuvinci rear hub with autoshift. I have it geared low with a 34 narrow wide chainring on the bafang, and a 18 tooth on the nuvinci. Motor always spins easily, and climbs ‘til it throws you off the back. And only use a 10 amp/hr 48 volt battery, which lasts a very long time, motor is never amping up, even from a standstill, because the autoshift always starts you in the lowest gearing. These cv hubs compliment the mid drives very well….only one chainline, so its super low maintainance…no derailleur😀 cheers and happy new year!
Your bike sounds awesome. Sounds like you got a good balance to let you climb those hills with ease! Happy New Year Jim!
Well done. I was particularly interested in the logic you shared using the nylon gear. Without being an engineer on the team that designed this motor I believe that is the reason for using nylon. It's a perishable part that keeps you from destroying the motor. no questions about it. Thanks again. well done.
Cheers Steve. Still on the same one all these years later. Seem a few folks burn up stators that would likely have been saved with a nylon gear that went to the steel version. Cheers
Another really good video. Just an fyi it appears while doing your hill climb comparison you had the graphics reversed. It said stock controller while ripping up the hill with the bac 800.
Very much looking forward to your lighting video and what you come up with. I have been looking at Supernova m99 pure + and the Light and Motion options.
Oh no lol. Damn it. Not sure how I missed that. Good eyes my friend! I'll update it when I get a chance. I will check the light you mention. Cheers!
I've been watching a lot of these videos ,as im going to set up my own ebike with a mid bafang, still deciding what mtb to buy but have decided on a 1000 to 1500w motor ,and you my friend are the most informed and savvy expert on this subject ,so glad i stumbled on to you ,ive listened carefully to your every word, Thanks, ,your the man...massive respect...edit, forgot to ask ,how much for the fatboy, ? save me the build.....
Thanks for the kind words. I think I paid just under 3000 Canadian. Probably about 2200 US. Cheers
@@HighVoltageKits That's great value!!! Awesome info. Thanks!!! 🇨🇦
Fellow Brit here, although still live in N.E. England where there are some hills. Originally started watching your videos because yours were the only ones i could find with hills to see how the BBSHD coped. Originally was thinking of a rear hub motor, but after your videos and more research, decided on the BBSHD which should be arriving tomorrow. Must admit I was slightly confused by the captions, but can see others have pointed out they were muddled up. Keep up the excellent videos and looking forward to the new projects.
Yeah I messed up lol. I will change it when I get a second. Awesome you got your motor! Good luck with those hills and the build. Hubs tend to suffer on hills. My Mum was from Wakefield!
Thank you for the inclusion, great video. We (ERT + ElectronCycles.co.uk) spent a long time working out how to use gears and overcoming the Nylon gear thing (we also spent a fortune developing a metal gear, but abandoned it we we realise that the next thing to fail could be disastrous- motor windings). For non fat bikes we recommend gearing 42T F and 28T rear for on 29er or drop the rear to 26T for a 26” rim. Like the man said, let the motor spin! Thank you Captain, Ay Ay skipper!!!
Thanks Francis. You are most welcome. The bike would not be what it is without the development work you guys put in. Much respect! Cheers
Have you considered developing a controller kit for the Bafang Ultra G510? I built a DIY frame for it but need a few more amps to easily maintain the flow of traffic on local roads (usually 65kph+). I'm currently testing it with 58T/17T (6.1 gain ratio) single speed but plan to add a Nexus 3 IGH for extra gearing to help out at startups and at top speed. The ultra gets hot but comes with the metal reduction gear, hasn't given me any issues yet at 1500w with the stock controller.
I've seen a few guys fit the phaserunner inside the Ultra but it'd be nice to have a more plug n play option. Otherwise hopefully Bafang will get the hint and give us a Super Hyper Ultra Max motor built to handle higher voltage and current ;)
eBikeaholic it is on the map but we’re a bit too busy at the moment. The plug and play bit may be a little more complicated too. We can definitely do throttle wise and actually have a rough map ready now (have to try it which with a bac 2000 will fly along. I’ve wpso all run mine at 70A x 52v butbdidnget abut hot. Will handle 60 a definitely
But wont high rpm be a waste of amps? I plan to build mid-drive bike with bafang motor , right now i have 250w geared hub motor and it very very powerful and torqy at 3-15km/h and then gets weaker and weaker , tops at 30km/h where it looses voltage but does not give any acceleration, should not it be better to ride like a diesel car? high gear , low throttle, low rpm ? to maximize range and be easy on motor?
I am not a complete expert but in general electric motors love to spin fast in order to shed heat. If you can max the rpm in a given gear then the amps will fall off due to back emf. That is why the controller employs field weakening. Diesel motors employ the compression to get its torque I believe. I am not sure this helps. If you post this on the discord we can have a good discussion tho. Its a fascinating topic! Cheers
Amazing. You know more of the ins and outs of the bbshd more than bafang themselves. Great work.
We are good at pushing them to the limit. I'm not sure they are that happy. Appreciate the kind words though! Cheers
thank you for this video, a lot of people online talk about BBSHD's destroying drive trains left right and center, glad to know that replacing my derailer won't be part of regular chain maintenance haha.
You are very welcome. Most people chirping away have never even ridden a BBSHD let alone on thats been boosted to 72 volts.
Sorry if this has already been mentioned in the video or comments, but I think nylon gears are also useful in the event of motor failure as it's cheaper to replace a single damaged nylon gear than the whole motor when it tears itself apart! Thanks for all the videos, learning loads :)
No I missed that one! Thanks for posting this. I am quite sure that the nylon is cheaper. I have also heard it's a failure point for if a limb was to get jammed for any reason. The nylon would then fail when a steel would keep going much longer and do much more injury.. Not 100% on that one tho. Cheers!
Love your video's, keeping them concise and just the info we need, ty!
Hey Doc, thanks for the kind words. I am working on an update for this bike right now.. Should be up shortly. Cheers
I love your thorough and smart clips. I believe the ludicrous change is merely paralleling in 3 surface mount resistors in the feedback sense circuit. This halves the resistance that generates the sense voltage in each of the phases, which makes the feedback circuit “think”
It is seeing 25 Amps, when it is really seeing 50 amps. When you connect to the Controller to flash the limit, if you want 50 amp peak, you enter 25. This is consistent with the thread that the sense resistor values are halved. I was not under the impression that the ludi comes with a steel gear. I was told by them they do not change it. This is circa early 2020.
Thanks for your excellent review. I need to learn about ASI Vs phaserunner..... thanks sir Codswallop!
I figured they were doing something with the existing circuits. The 25 amps thing rings a bell. If you have a look online luna have just released a new version of their bbshd controller. Same size but using the VESC platform. It is quite a step up for them. Not seen it on a bike or running a bike so talk is cheap but I hope its good. You are welcome to join the channel discord if you would like to learn more about the ASI and other controllers. discord.gg/UBYptPC4Ty
Thanks again Captain. I just picked up a Trek Farley 5 and a Surly Ice Cream Truck. I’m gonna build out the ICT first. CYC has been accepting orders for their new motor with the ASI controller for a couple weeks now. It takes 1-3 months to arrive and is more expensive. I’m gonna have to watch this video a few more times before deciding on a unit. I live in a very warm climate area and I tend to push my equipment so I’ve got that to factor in.
The cyc runs much much cooler than the bbshd simply by being designed for that power!
Cyc can handle 3000w and if you keep it pulling 3000w in hot weather, you might burn it, so if you limit the power to 1500w, you still getting a bbshd rival but using half power you could use so not heating at up as much
I have run the cyc through the same route as the bbshd and it's barely got warm. Even when Alan at ERT put it through 72 volts 12000 rpm it barely broke the 50 degree C mark. He lives in LA so pretty hot there. It will push 3kw all day long :)
@@HighVoltageKits As I have discussed with you before, I was waiting to see how well the X1 held up for long term reliability (something that is known with the BBSHD) And now they've already released the gen 2 model (in typical fashion of a Chinese company). It is 5kW now at 72v and capable of out performing a Sur-Ron on a donor DH bike they claim...
Maybe a stock sur ron or a lightly modded one. No way it beating the ERT turned bac4000 at 72 volts though. I'd have to see it to believe it.
The timing of this video is perfect. Thanks Captain, your videos have guided me in so many ways. I have many a change to make to my setup, but taking your advice and doing a 1x1 drivetrain was a step in the right direction!!!
Awesome! Great to hear the videos helped you. Cheers!
Thanks for the video I really appreciate your uploads keep doing what you're doing and I'll be watching 👍👍😁💯
Thanks! Appreciate the kind words and support!
I'm using a bbs02 on a nexus 8 cruiser bike right now, next project will be something like this. Very informative. These things are so much fun.
Thanks Kirk! Ebiking is definitely a ton of fun. Whether you build or just ride. Good luck with the new bike!
For people worrying about melting the gears, General Motors used nylon timing gears in their engines for years, which I would imagine get a bit hotter than this small electric motor. If people are actually melting these gears, it's probably a poor quality or improper grease that's not dissipating heat or reacting chemically with the nylon and causing premature failure. Even with the things you mention in the video, I'd still put money on the lubrication cooking over the gear itself melting. I'm quite enjoying your videos, they're very informative for someone looking at building one of these bikes.
You make a very good point. In reality what happens is that it softens to the point where the forces sheer of enough teeth to stop it functioning. But full melt no. The stresses might be a bit higher in this application as it is the main reduction gear. But the point is a valid one. If the user gears the bike correctly it should not happen just like with general motors.
Another come too BBSHD video, nice work Captain and spot on as usual 👊🏻
Thanks! I have been enjoying your riding.
Another great video on this conversion. Thank you!
Welcome!
Excellent video Capt., one correction on the gearing that melted the nylon gear. It was a Luna Mighty MIni (I think they call it) 30T on the front, not a 36 and correctly an 11T on the back. All the info you gave on RPM and gearing was spot on. These BBSHD motors are built like tanks and if you give it throttle it doesn't matter what gear your in, it's gonna turn. But the extra stress from a high gear ratio to get it moving and keep it there is what creates the heat. Since I dropped down to a lower gear ratio(1 to 1), which I learned from watching your video's, not only are the temps much lower, but I really don't notice a difference in speed. As you correctly pointed out, in the higher gear it won't turn as fast. The lower gear turns faster, ergo, ( I had to throw that in there to try and make my gear melting self sound smarter) but the same speed. My cassette is actually set up were I can use a more than one to one ratio when I need it. Since I have a 30T on the front, I have 3 larger gears on the back I can use. I haven't tested it yet but I am going to try it on a slope that is at least 40% grade. I'll measure it to know for sure and maybe even make a video. But for everything except the rare super steep slope, I plan to run a 1 to 1 and never change gears. Acceleration is better and top speed stays the same. Thanks for all your help
I was wondering when you'd see it. Great to hear the bike is doing well. Thanks again for permission to use the photo. Cheers
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I know this video is a year old, but I watch a lot of Louis Rossman videos of Louis Rossman Repair Group in New York City. Louis runs a 72 Volt battery on a Bafang BBSHD. He doesn't talk a lot about his bikes but I haven't found anywhere where he said anything negative about that setup. He has built his bikes for speed and rides them to and from work every day. Good video here.
Thanks Dave. If you want to learn more or meet other riders with this system there is the channel discord. discord.gg/YAAjfgc You are most welcome to join. Cheers
Great video, thanks! I seem to remember seeing a video that Justin from Grin Technologies did where he installed a Phaserunner motor controller on a BBSHD and I thought that it fit snugly in the controller cavity after removing the stock controller. I can’t find that video anymore, and I wonder if Bafang made them take it down. I’m glad to learn about the ASI controlller, thanks for posting!
Thats another option. The phaserunner is based on the same circuit boards as the BAC800. They get the boards and put it on their own designed casing. They work pretty closely on it.
Great info, the onscreen telemetry is marvelous
Thanks 😊. This is how it is done if you are interested. Bit long winded mind!ruclips.net/video/JuSv8bFMR6A/видео.html
Just want to add some to this very informative video. Ive been running bbshd for 3 years and thousands of kms now. I run 60volt and 50 amps. No need to bash Luna for their controller. They did what they though was reasonable at that time. Nobody had BAC controller set up back then. I stripped nylon gear in first few kms after running just 52volts and 50 amps. And motor was nowhere near hot. Temp is not what makes it fail! Its sudden burst of torque at wrong gear. It strips not melts. Ive made and been successfully using bronze gear since. What gets motor hot is long rides at high speed. On the trail with full but short bursts of torque and slower speeds BBSHD can go all day at 3000 watts. Keep gears low spin motor fast. BBSHD can take tons of abuse. BAC+ 72v+ sturmey archer 3speed is my next upgrade.
Good points. I have seen the gear fail in both ways. I guess I always had it geared correctly. Sorry if I came across as harsh on luna. Their efforts on the bbshd are good. I was just looking at a destroyed bbshd this morning. Respect of the gearing key..Thanks for the comment. Cheers
@@HighVoltageKits Yep yep. Luna now has PEET plastic gear. I will give that one a try as well. Want to get my gear "noise" down a bit. Its a bit of a learning curve with BBSHD to sort of feel what gear to be in for given speed and grade. My rule is- if its " light" enough to pedal its good enough to give motor all the beans.
That's a good rule of thumb. I bust my chain a few times early getting that one wrong.
Love what you do man
Thanks Chris. Much appreciated. I will be doing a teardown on this build shortly.
Awesome, thanks for sharing... 72v makes a huge difference and it really shows during the hill climb test, that beast sounds hungry! Good point on having two battery packs. My current Bafang Ultra project is designed to maintain the flow of traffic when the bike lane disappears so I'm struggling with range vs. speed at the moment.
Thanks. Range v speed is always tricky. 72 volts bumps the speed at all power levels I found so that helps with conserving power as well. Cheers!
I've been running my Talon 1 since the beginning of July with the BBSHD and the Bac800 with 72v since the beginning of August and I'm just amazed by the power of it and I've been running 55 amps through it after my scare about the motor being blown and having it come back to life after tearing it all apart I decided screw it and set the current limit to 55 to see what it can take and maybe it's because its winter now but I haven't had any heat issues riding to work every day at car speeds with 44t front and 27t rear.
I was pretty scared after reading every article and watching videos of people saying the BBSHD can't handle much power but after running over 4500 watts through it every day for about a month and a half now it seems pretty solid.
With the right bike I'm sure it's possible for others. I can't recommend that level on here though. I'll bet it's fun though! At the end of the day it's just a motor if you wreck it repair or swap. Good work! Cheers.
How many amps where you running when you though IT bróker befor you where running 55amps thanks
@@glennjrbeck I think it was set up at 45 amps which was perfectly fine but my bac800 had issues and died a while later. Currently running CYC x1 pro gen 2 with a stock controller for now until the bac855 is ready for it.
Thank you for sharing! I'm about to sell 2 of my hub motor bikes to build a mid drive and I saw people saying that controller with the Bafang BBSHD motor were amazing.. Little bit more research but I'm sold on the idea. I'll be going with a geared hub with belt drive though. But now with your lesson on the gears and heating the motor I have a better idea of what to look for. I'm going to over power a hub motor with that controller first. I have a motor that's been through hell and just won't die. I have to know what it's limits are, then I'm going to dissect it and learn how to rewind a motor. Great video, thanks again!
You are very welcome. Your projects sound great fun. You would be most welcome on our light electric vehicle discord community. discord.gg/pKHk5ej2GG
very informative! Good vid Capt!
Thanks Alot! Cheers
Great video, enjoyed listening to you regarding science and Theory. At the minute I only have a cheap diy hub motor kit installed on my bike. Thinking of jumping up to the Bafang HD. Best wishes Uk
Thanks Peter. I'm running a discord server discord.gg/AnyQRuh lots of people running the bbshd on there.
Great advice, it is very clear that you have a lot of common sense, skills & have taken the time to research, put good though into it adding to your experience! I appreciate it, thanks! 👍😁👊
Thanks for the kind words. It's appreciated. Cheers
Oh, that was a good video with good information. Thank you.
Thanks Victor, appreciated.
I really want to upgrade my bbs now! I’m glad I didn’t get the upgraded controller from Luna. Only downside to the phaserunner is once you get it up and running you’ll never need to pedal anymore lol
Yeah that's true. One of the good things about the NXT will be the ability to have several riding profiles you can switch between. One could be setup to allow for limited power where peddling is still viable. It's not how I ride but very doable. Cheers!
Captain Codswallop cool... I was also thinking switching between the 52 and 72
This is a brilliant video! Thanks a lot!
Thanks Alek. Glad you like.
Thank you for these instructions.
You are welcome. Cheers!
Loved the commentary
Thanks Warren! Cheers
Interesting listening and it all makes great sense, if your father told you not to labour the engine but to let it spin and don't load it up in a higher gear.
Yeah. It adds nothing to your speed in most cases. Cheers
The trick with the bbshd is to run more voltage and stay in low gear to minimize strain. Mine is running on a Phaserunner with 40amps phase weakening and 88volts li-Po. Top speed is 53 mph and I never have to change gears. I get 40-50 miles on a charge. Ive never melted a gear and I've been riding for 2+ years. To increase reliability, I've added heatsinks to the motor and it rarely if ever exceeds 120 degrees F.
Yeah. You nailed it there. My favourite is running 72 volts LiPo. I run 1 to 1 fixed gear. Motor stays within its limits. Still on my nylon as well. Great comment. Cheers.
Capt, I have a 2015 Fatboy with a PF30 bottom bracket. The ID is 46 MM and the overall length is 100MM. I am wondering if you had to use a bottom bracket adapter on your Fatboy and if so what did you use? I have been looking for the right adapter but I can't find a posting with that information. Great videos.
Mine was threaded. Try this link tho. www.ebay.ca/itm/TOKEN-Adapter-for-PF30-46mm-Frame-to-English-Threaded-BSA/192254254161?_trkparms=ispr%3D1&hash=item2cc33f1c51:g:JRkAAOSwEIBea16F
I think Lekkie (lekkie.bike) makes some sort of adapter with "PF30" and "Bafang" in the title (-; lekkie.bike/product/lekkie-bb30-pf30-eccentric-bafang-adapter/
excellent video, very well thought out and published. many thanks.
Thanks Mike, cheers!
I do the same thing with my batteries.
I run 18s 20Ah for distance, or 20s 6.5 Ah for the thrills...
Nice bike Captain
Thanks mate! The 72 has a nice kick. Good choices!
The nylon gear in the motors was originally designed to protect the motor and fail before damaging the motor.
Makes a good deal of sense. I have heard it works as a safety feature if a limb got caught and would fail quicker. I'm not testing that theory tho lol.
I'm so jealous! That things is just badass! I don't know why anybody would buy one of those 250 watt pieces of junk that specialized manufacturers for 10 Grand. When you can build something like that for considerably less.
I will say that although very expensive for a tiny motor the levo bikes are meticulously designed and of very high quality. They serve a purpose. If you want exercise and enjoy tight technical riding. As in proper serious mountain biking they excel. But for me it would be useless and I am guessing most people it would be a waste. Cheers
Jealousy is a trait of Satan
Amazing video! So many gems. Thanks!
Thanks for the kind words. Glad you found it useful. Cheers
Great video, I have learned a lot.
Have you ever pulled any kind of trailer up a hill? I am hoping to modify my fat tire bike or another hybrid MTN bike to do this, either with camping gear or work equpment, but can't look too illegally powerful
Do you get stopped by Police? The central bag housing a battery makes the bike look more illegally powerful than the paniers battery setup because the motor is very discrete.
Thanks Nick. Check this video out from way back in 2018 I think. ruclips.net/video/pOoZACypiFM/видео.html I used to pull a two person trailer when the kids were younger. This was with a stock BBSHD. It was awesome tho. I am not sure how it would work with the High Power stuff as it stands now as the stresses are different. 1700watts was no problem tho! Was great fun passing all the lycra office gang. Never had bother with the police. Mainly because I ride respectfully and don't draw attention. Mostly they remark on the massive tires. The motor gets ignored. If I passed them doing 70 I think it might be different.
@@HighVoltageKits Yes people mostly remark on my tires too, they seem to think it makes the bike faster or more powerful, I explain there is no advantage on a road. one guy said my bike looks like it ought to have machine guns on it, its a bit Mad Max looking.
have you, or do you know anyone who took a rear hub motor and converted it to a front hub? It seems like it might work removing the cassette holder and carefully cutting down the axle bolt, adding new threads. After I upgrade the rear motor I will have a spare so I may as well try this with a smaller battery on the front rack and the same old controller, just to give me more power on a hill. another throttle too
Great stuff here....thank you!!!
Thanks Rondo. Cheers!
So could field weakening be used for me to better use the bafang efficiently at gear ratios and cadences that are more comfortable to pedal at?
It’s actually the opposite. Using fw will make it harder to find a comfortable pedal cadence.
Very informative! Thanks!!
Thanks Al, cheers
Thank you for this video. I didn't see brake cut-off switches on your brakes, do you feel they're unnecessary? I'm doing a Salsa Mukluk build and would like to not use the cut-offs if possible as they're a pain to setup.
Thanks
You are welcome. I do have one on there but its hard to see. They can be useful. Mainly cause you can do a soft trigger and change gear etc. Are you doing a stock bbshd or modified?
@@HighVoltageKits A stock bbshd for now. I was going to add that button cut-off on the left side for that type of shift and also a gear shift sensor. Thanks
I'd skip the gear sensor and use the cut off. It only takes a slight touch to cut power. Change gear and back on. The gear sensors are not very responsive imo. Cutoff I like on the back brake.
@@HighVoltageKits Thanks, will do.
Hi,
Thank’s a lot for the amazing content, it’s very helpful. I have a bbshd on Crossbike which I use for commuting: 40km for one way and 500m elevation when I go back (several routes possible, shortest one with gradients up to 17% for 200m). I use a Cannondale Quick CX1, 9speed 11-32 cassette, Lekkie 46t chainring, 48V 14Ah stock battery. I just ordered the newest ASI Bac 800 kit from ERT and I want to change the battery for significantly more top speed too as I have 30km of flat road. But I’m not sure if a 72V battery make sense as I don’t have (and don’t wish) a throttle. With such a power pack, I’m afraid that I won’t have a comfortable pedaling cadence on the flat and/or be able to benefit from the top speed the motor could deliver. If needed, I can install a Sunrace M991 (11-46t). What’s your opinion, does a 72V battery make sense without a throttle or do I take a risk to overheat the nylon gear? I wish to reach 55-60km/h, maybe a 52V instead is ok too… Thanks for your valuable suggestion. Cheers, Etienne
You will easily hit the speeds you are talking about throttle or not. In terms of peddling it's up to you to balance the power going into the peddles if you want to work as well. The nxt will give you good control over this. In terms of the nylon gear you want to keep the rpms high. I hit over 60kph on the flat with 72 volts on a fatbike. But use a throttle. The pas is restricted to 1200 watts with the NXT. 3250 watts via PAS is not a good idea. That said you will get more top speed with the 72 battery anyway at 1200 watts as the voltage will mean a higher top speed anyway. Really it's a case of experimenting with what fits. I would get a throttle still. You can always unplug it... I think a future nxt update will allow it to be locked out. Hope this helps
@@HighVoltageKits Absolutely, thank's a lot. And in terms of gears, should I go for 1-1 ration by changing the cassette? Probably yes I guess...
Really like your descriptions and the evolution of your build. So would it be fair to say that what you've created here is basically an electric motorcycle? With your 1:1 ratio, do you ever pedal the bike?
Sometimes. I do have two other gears that are a bit higher. The exercise part of the vehicle is something I want to work on. I prefer the term light electric vehicle. But you are correct in your thinking as it's not really a peddle assisted vehicle. Although it can be and with a different chain and gearing could easily be. So restrict the power and you can ride speed restricted trails. You can't do that with a traditional motorcycle. Thanks for the comment. Cheers!
Could you make a video on ""What not to do with stock BBSDH controller"" ?
If I still had one yes. I have not used one in a few years. Karl's special source is what you want tho. Great for riding trails. They are quite hard to mess up. Unless you play with the amps too much with the eggrider.
If high temperature is a real limiting factor could you employ a custom water cooling system?
Maybe. But that's beyond my scope. Cheaper to buy a more powerful and better designed motor like the Lighning Rods or the CYC X1. That said if someone makes a water cooled bbshd I love to see it! Cheers
Basically going into motorcycle territory at this point. Just get a motorcycle lol.
How do you feel about mounting the battery in the back of a pose to the triangle in the front. Does it make a big difference in the way the bike handles and feels?
I have seen many people do this and it has to have an effect of balance. But to how much it would affect your riding is hard to quantify. I have ridden with heavy bags in general commuting no issue. Maybe if you hit a steep hill it might pull the front up a bit. For normal comuting no issues. If you want to ride trails alot it might be better to keep the centre of balance more in the middle. Hope this helps. Maybe ask on endless sphere for people who ride like this also.
did you accidently mislabel the video comparing the hill climb on the 52 vs 70? Seems like you got them backwards?
Yes Sir.. Good spot
Hello, I wonder does battery range increase also when hitting higher rpm in those 42t gears on back or is the same as with higher gear but only motor to struggle more.
Range should increase as the motor at or near max rpm will generally draw less power due to back emf. There are other factors. If you are hitting a hill then the draw will be higher. But much less than trying to power up with a small gear and much less stressful on the motor.. Hope this helps! Cheers
So I have a steel gear I replaced my nylon one with, greased everything up that needed it, put it all back together and installed a ludicrous controller on my fat bike and the motor gets hot as hell. Nothing has failed with over 300 miles on it. I have a mini mighty luna chainring on front and generally switch my gears all around due to the hilly conditions in SF. You have got me wondering what will probably blow out on my motor now😆
Try using a laser thermometer on it. At 52 volts it can get pretty hot. I think 60C is the highest I have found. Its not melted the nylon tho. I think you have some wiggle room.
@@HighVoltageKits thank you...will do👍
ERT seem to have vanished, is there an alternative/ new maker of an upgraded controller?
Yeah us. Shoot an email to Greg@highvoltagekits.com we make the best version there has ever been!
ruclips.net/video/5AcCZN3Mx-w/видео.html
Great video thank you !
You are very welcome. Cheers
Great information here Captain, and very thorough. Here in England I'm about to start a build and making decisions on controller, chain rings etc. My last decision is really on why not an IGH? Surely with so much power, a 3 speed simple and robust IGH would be the most reliable? The sturmey or similar? Less issues with chain alignment etc?
Absolutely. There is a 7 gear sturmy that can do 3
kw. I have to pick and choose where to spend the money. Once stuff wears out maybe I'll try igh.
hi there, just thought I’d let you known that the Nuvinci hubs work real good with mid drives. Seamless shifting with the Harmony auto shift, just set your cadence you like. shifts to lowest gearing when at standstill. Protects the motor from high gear starts, and subsequent heat issues. I run mine with a 48 volt 10 amp/hr battery, stock controller, and it climbs insane slopes with ease. With one chainline...they work very well together!
Thanks for that! Will check it out. Cheers!
have you ever considered the stemy archer internally geared hub in the rear, that would delete all the stock gearing in the back. this will be going on my e bike when the covid stuff is over.
I have. But I have limited resources so I have to consider where best to invest it. Right now the bike works great and I use it a lot. So building a new hub etc is not really where I want to go. But in terms of its fuction, its great. 3KW is meant to be its max.. Which I do go over a bit. Great to use tho. I have a nexus 7 speed on my bamboo bike.
@Captain Codswallop The sound of th bike in these 2 hill tests are very different, but how about in person?
It's not really louder than stock but the pitch gets higher. The cameras are different and the placement as well so it's not a very good comparison in that respect. It sounds much louder on the video to when you are on the bike. Offroad its quieter still.
@@HighVoltageKits Thank you!!!!
Do you prefer the fat tires over regular sized tires?
Fat tires all the way! So much fun
Can I use two 36V Battery's for 72V. Do I have to be careful with the BMS when I connect them in series?
Yes in series. Confirm it’s ok with the battery maker first though
Glad i watched this Video , I'm getting ready to order a BBSHD Kit and was thinking if i should get a 120mm BB . I have a RSD Mayor Fatbike and it can fit 5 inch plus Tires , has wide Chain stays . I will put my order in today
I definitely needed the 120mm. It's the gear housing that hits the wide chainstays you get on fatbikes. I have a discord channel here. You are welcome to post pictures and questions as you do your build. There are quite a few bbshd builders on there. discord.gg/AnyQRuh
You said you got a 120mm BB motor for this 100mm BB frame. To get the right clearance for a larger chainring? How did you know to do that? If I have a 68/71mm do I upsize as well or just order one of the same designation. Just making sure before I pull the trigger! Keep up the great work with your cool, informative & non-annoying videos! :)
I based it off a video I saw on RUclips where the guy also had a specialized fatboy. The chainstays push the reduction gear out from the bottom bracket. What bike are you converting again?
Are you buying from em3ev.com?
Yes from Em3ev! I have a 2013 Rocky Mountain Slayer 30 full suspension
I don't think you will need the 120mm. The question is how wide do the chain stays go. You could try making a rough template of the bbshd to try the fit. Joseph at em3ev.com is really helpful as well so would be able to advise you. I am thinking that it might need the 100mm but he may know for sure. Also maybe look on endless sphere for a similar build and see what they used.
Great videos! Keep up the good work. Long time BBSHD fat bike enthusiast here. What brake caliper adaptor did you use on the Bluto? The Magura QM42 (160mm to 203mm didn't seem to work for me.
The bike shop I used provided it. I think its just a standard Shimano one. The brakes are still the tekro which I really should change. Money is always tight tho lol. Hope this helps!
Thank you sir. I appreciate the timely response. I nabbed a clear screenshot from the video. I'll just show my LBS what is needed from that. There is nothing wrong with Tektro brakes. Been using them for years with no issues. Thanks again. Fat bikes with BBSHD's are the best (in our humble opinion). A week after my riding my first build, I just had to build another one to share the experience with others. If nothing else, it provides spare parts immediately. :)
You are most welcome. We have a discord group if you are interested in posting. Lots of fellow builders there.discord.gg/pKHk5ej2GG Cheers
Very informative video! Looking to convert a bike this spring once our Canadian snow melts in Ontario. Had a Crystalyte front hub like 10 years ago which corroded from winter condensation. Bought a lifepo battery from Grin which was the worst thing I ever bought. It would self discharge and go out of balance within days. Sent it back for service and it was no better.Got a whole 1000km out of it. I bought a Yamaha dualsport which was way better for the environment and my pocket book than that useless blob of crap. So anyways, which motor do you recommend? I want to go far and not crazy fast like you.
Sorry to hear about the battery. I have use their Satiator charger and it is a very well made bit of kit. I must admit I have not used that particular battery chemistry though. I usually push the power a bit in my videos but I can get a very good range just by dialing down the power. The one day it was super icy I set it to 1500 watts max and cruised 6km for the loss of 5% of the battery. In terms of motors either the BBSHD as I have used it or the CYC would work great. The thing about having power is you don't have to use it... but its there if you need to. I could and do go out on long runs in the bush and on gravel roads etc. A 25 amp hour pack can provide hours and hours of riding if you drop the speeds back to 30kph. The CYC has torque sensing now as well which is good although I can't say what its like as I am on the Gen 1 motor and its only just been finalized.
Is it fine to run a 72V battery with the bafang motor and bafang controller then? I know.u say the aftermarket controller is way better... but im buying all the parts from scratch now and dont have the extra cash for that . Id rather buy a 72V battery now if it will work thab a 48 or 52v now and then have to change it later... what do u think? Go for it? Bafang BBSHD + 72V bat with bafang controller, bafang chainwheel (can upgrade later to leccie)... ?
The stock controller on a bbshd will not take 72 volts. 52 max. Why don't you join the channel discord and post questions on there. Lots of builders can give you advice! discord.gg/YAAjfgc Might even sell you some second hand parts etc. Cheers
How do you know what rpm you’re running? The motor on a 52v battery should be around 3700rpm. Its output spins at 160 rpm x 23:1 reduction. I know with higher voltage and field weakening you’ll gain a bit, but not that much
You gain a massive amount of rpm with the right controller and tuning. I am getting up to 13000 rpm loaded and over 18,000 unloaded. With a 52 volt battery it’s about 9000 peak loaded. Well over double the max stock at that voltage. The rpm is being recorded via the ASI Bluetooth app during the ride.
Interesting. But something seems not right with that. I’m not sure where it is getting that information from. But that’s not how electric motors work. They get their RPM from the way they are wound, and the applied voltage. There is nothing else a controller can do except for field weakening. But that will not make those type of gains. You would be going over 150km/h if the motor was spinning that fast. The output after reduction would be 565 rpm btw. Stock is 160. There’s something wrong. It’s a really good and informative video video, so I’m not trying to give you a hard time. But I would definitely look into that.
@@HighVoltageKits I think I got it. Someone else mentioned it. I think your controller is reading the poles. The bbshd has 4 pole pairs. 13,000 rpm / 4 = 3250. Which would be a proper rpm for the motor to spin at 52v. But mechanically, the rotor is spinning at 3250rpm and the chainring is spinning at 150rpm or so
@victorvannatter312 nope. The bbshd has five pole pairs. The rpm is 13,000 and the data is coming directly from the controller. It’s using field weakening to boost the max RPM of the motor.
Sorry I missed this. There are lots of videos on the channel of this build. It’s 100% possible with field weakening. The top speed on a bike is 65-70kph with a 1:1 ratio to the back wheel.
Would it make sense to use an internal geared hub with maybe 3 gears, one for hills and two for flat out speed?
It's not a bad idea. Finding one strong enough to handle the torque is the challenge
@@HighVoltageKits That is what I am finding. Although, it would seem I am not the only one having this thought. The marketing is starting to address torque issues on the internal gear hubs.
I must have missed something. In this video, you label the slower version of the hill climb with the better controller and 72v battery. Much faster climb is labeled as stock BBHSD??
No I f'd up the labels. I just would lose all the comments if I re-upload it. The stock is the slower.
Hiya mate sorry to miver but I've got ton a phaserunner coming from your neck of the woods canada am running 52v on 1000w bsshd want to run throttle only coz don't wana use cycle analyst will I need speedometer or do run senor less I've looked at pro gaming aswel an looks litle daunting eny chance of bit of advice thx captain aswel luv the vids BTW
Thanks mate. I know Grin have a few setup videos including one on the bbshd. I am not sure if it can be run sensorless. Mine is on sensorless run hall start. The phase runner is based on the ASI bac800 but with a custom form factor. There should be lots of support stuff on Grins website. I am not sure if you are able to run it without the display or not. I had thought the cycle analyst was pretty integral to processing the throttle signal. You are welcome to post pictures on my discord. I can setup a phase runner channel perhaps. If you search under Grin phaserunner bbshd its the top link on youtube. Discord is discord.gg/YAAjfgc
Very interesting. Thanyou.
Welcome!
Nice video. What do you mean by 'this does make it in effect a sigle speed bike' do you only use the big sprocket and never shift?
I can shift a few gears still. But I mostly run it single speed. Goes fast enough for me on a fatbike.
My bbshd has been sitting unused in two years upgraded to a ERT 84v external controller and destroyed the nylon gear..Im going to get her back up this summer and running with steel gear replacement. My cheap 48v chinese battery still has a charge but its been abused bms died so I just cut it out, should probably check to see if cells are balanced manually before I get her back on the road. Looking into building a 72v battery on a tight budget. Any advice or thoughts would be great
Wrote the coment before getting to end of video interesting thoughts on the nylon gear your logic and why the nylon gear makes sense but if I already have to replace might as well go with steel one for few bucks more
Yeah. I will see the condition of mine in the next while. Apparently they start off a bit noisy but get quieter as they break in..Good luck getting it running!
Hi, just come across your channel. I run 3 fat bikes in Wales UK, thinking of running a BBs-02, or BBSHD on one of them, over buying an E bike with Bosch, Yamaha or Shimano motor. I'm 20st in weight, South Wales is hilly in parts, but like you know, weather not the best throughout the year, and overall temperature not the warmest, if that makes any difference?. If I wanted a bike for carrying maybe a front or rear pannier, to carry a camera or drone, am I looking in the right direction for my first conversion? I ride two bikes with 26in wheels, 65mm wide rims with 4.8in tyres, and one with 26in wheel, 65mm wide and alternate 3.8 or 4in tyres.
Spent loads of time in Wales. Pembroke and Snowdonia mostly. Also, Tywyn way. My sister is near Carmathan so I'll be over next year. Lower temps mean the motor will run cooler overall. Recommend the BBSHD over the 02. There are also some new motors from TOSEVEN. The DM01 is I hope going to be the equivalent of the BBSHD with torque sensing. If you check the video history you can see info on those. You are also welcome on our Discord community. Links in the description.
@@HighVoltageKits Hi again, thanks for the heads up. I got two bikes I been considering running it on, as my two other fattys I'm running 4.8s and the stays and BB are so wide I think I'd be taking that chain line way out away from the BB and too much fuss on the mods taking away the lower gears. I'm either going to try it on a Marin Pine Mountain 27.5+ bike with 3in tyres, or a Ritchey Commando fat bike with narrower stays/BB on a 4in tyre. I'll check out the links of the other brand also. So for instance, as an example, if it was the same motor, same gearing on the bike, in a 500wt, 750, 1000, 1000+ travelling on the flat, at the same speed, which motor would be the most reliable, economical between charges, durable, and go the furthest distance also travelling at the same speed for all units? Remember i'm 20st, and thinking of a pannier for camera gear and maybe a drone also. Snowdonia looks stunning, we got a few nice trails down here just off the M4 motorway also, that's worth a look. Thank you for the previous reply. A friend of mine has a 48wt battery for sale also, so may get lucky with a new setup with two batteries.
I forgot to ask you what fat tire are you using for the fat bike I am at cross road on what to get for all season riding
The smooth ones would be useless in winter. The ones they came with were ok. Ground control I think they are called. I love the cake eater winter ones I got. You can get them stud less. It's not a simple choice tho.
Can you make a 750 watt bafang middrive run higher watts just by changing the esc ? Currently i run a 750watt setup and a monster 48v 50 ah (2400wh)18650 pack that completely fills the triangle of the frame (cube29er) touring edition lol ps great video content
You should be able to pull higher amps and watts if you switch to an external controller. I am assuming you are running the BBS02? That battery sounds great. Considerations would be what is the max draw on it in terms of Amps. In any case you should be able to boost it to 1500 watts without too much additional stress on it. I would start off by determining your battery specs and then look at controller options of which there are a few choices.
@@HighVoltageKits thanks for replying , my battery is made from 13 packs of 20 18650 samsung 25r cells .. i believe 50amps is the max draw
Sorry yes its a bbs02
Whats your thoughts on running a 52v 20ah on my bbso2b . Was thinking my p850c will tell me if it charges over 59v .
I should have done this rechearch an got the HD . But may buy from luna a bare bone motor next summer .
You should have no issues. The controller will pull what it can. At worst you might need to flash the firmware. You are welcome on my discord chat server if you need help.
Great information ℹ️
Thankyou!
I’ve got a cannondale cujo 3 would I be able to use the mid drive and battery that you are using
I think so. Why not join our Discord group. Post pics etc we can help you put. Best to load the app first discord.gg/2rNd9FFc Let me know if you have problems. Cheers
Great video, very informative. Question, what factory ebike would you buy if you were going that route??
Hey Nick. Of a high powered type the new Frey looks interesting. Something with the bafang ultra... Bike trix have a good reputation.
Hi great video content again. You most definitely have mechanical sympathy this goes along way with powerful middrive converted bikes. They need to be treated with a bit of respect running high voltage in regards to all the things your video covers I think people forget they are on a push bike not a motorbike and just try and go as fast as they can. Another quick question have you re greased your nylon gear yet?
Also with the ASI ERT can you set the power levels /peak watts/amps for different power levels your self via the software? I would like to have a lower power mode or modes for long range rides and technical off road sections I would want something fairly similar to say stock bafang bbshd level 2 to 3 where I can use the gears on the cassette. But then have a couple of max power modes making the most out of the controller battery and motor.
Not that I know of but you can use the Eggrider display and change the power levels to your liking in the app and it tells the controller what max power you want just by changing the pedal assist level on the display, I used that when my battery wasn't good enough for 50 amps so I set the pedal assist lower to only use 30.
The Eggrider display has been one of the best things I've bought aside from the Bac800 and it can even be used on the stock controller, The support from George and Emil has also been amazing after having some issues getting a locked Bac800 from ERT.
Have not greased it yet. I will in spring but I'm down to one bike so I dont want to mess with it yet. The way the bike is setup here is at a nice comfort zone for a fatbike. A lighter bike you could push a bit more. I could push it further but I'd rather have reliability and use a different bike to do that. I found my sweet spot lol. The egg will adjust anything of riding performance. The bac800 is insanely complex and bacdoor is not great to use. It should get better with developedments this year!
@@MeowBoxie Thanks for the reply ok so I think I need to do some research on the eggrider display then. So you can limit it down or up to what ever you want via the eggrider app. The grin phaserunner also looks like a good option with the cycle analyst it's a hard choice between the 2.
@@HighVoltageKits ok thanks I have not done mine yet either I'm up to nearly 1500 miles but I'm not running close to your power level at the moment any way. I think I may have a go soon. The eggrider sounds like it could be what I'm after but I'm also thinking about phaserunner and ca3 better do some research as I want to be able to use the bike as fairly close to it is now with the stock bafang controller as I do ride it off road alot on trials so I don't need the power all the time and definitely need to use my gears. But I also would like to unleash the full potential of my battery and motor as I do get plenty of opportunities to do that also lol.
@@danielgreen4213 I'd go with the Eggrider just because it's stealthy being so small and if you want a bigger display you can connect your phone, The cycle analyst looks super outdated and bulky on a set of handlebars.
Hey love the vid
Thanks Pascal! 😊
@@HighVoltageKits np but about the controller in our other discussion do you know of any high quality controllers that might be suitable for the cyc x1 pro gen 2 hopefully looking for 7 kw and up
The nukular 12fet is a good match. Silicon X maybe.
@@HighVoltageKits 12fet is a 48v which is not we’re near enough power and I can’t find any information on the silicone x
I'm sure they have a 72 volt version. Might be out of stock its a long wait with them
Any idea why the throttle cuts out completely on stock controller if the bbshd engages pedal assist?
Simple answer is because the stock controller is garbage. Longer answer is there is likely a parameter set somewhere to allow it. Try flashing it with a fresh firmware like Karl's special sauce or similar maybe? I will never touch one of those again except to remove it lol. I should say my stock one did not do this. Throttle overrides PAS or it should do...
Cap do they do the speedo lead in the harness now ????????
Yeah. I thought it always was. Perhaps I am mistaken for some.
@@HighVoltageKits yes theres a speed plug so thats cool . Want to build this like your fatbike cap .
Least i now have the motor on route 😉😉😉😉awsome . The 73 100m so going to wait till some faty comes up on gumtree
Sounds good! Post some pics on discord when you get your bike
@@HighVoltageKits will be a few weeks to get the bike i want !!!! Really happy i paid and have the HD cap . And the grin phasse runner leads do have a plug for the speedo i think i may have to buy 750c lcd or maybee keep the nice oneci have.
Will post some on your discord mate cool
Hey there! I have a Luna super banana with a bbshd that I wanted to immediately make a single/fixed gear bike out of. Any advice on best controller for upgrading with? I wanted to do 72v at average speeds of 30mph. Which single gear/cog should I choose? What would my mileage be? Any advice/help is greatly appreciated! And thank you so much for making this amazing/informative video :-) 🙏🙏
Best thing is to join our Discord sever and post photos and questions. We make a controller upgrade kit for the BBSHD that comes with the BAC855 and full online support via Discord. A 1 to 1 or close to that will easily get you 30mph with the BBSHD. There is a link to discord in the description of you can go here. highvoltagekits.com/discord
@@HighVoltageKits thank you!
Anytime 😊
Are all the Bafang BBS02 or BBSHD motors the same? Just the controllers are different? i.e. 500/750/1000 watt.
Different motors. The bbshd is more powerful.
so If I was to build a nice fat tire bike that works the best as it can "steep hill". what do you have on your set up that you say are must haves. will going to a say 50 tool in the rear be better since speed is not a objective. I would say power is 1st them battery life and last speed.
I think if I had used the 36t on the front and used it with a 42t rear or even larger the torque up hills would be improved at the cost of top speed... but still 50kph I estimate! Hope this helps
I'm in canada too have you had any problems with needing to license the bike as a motor bike or not worried about it?
nvm just saw youtube recommend a video by you on this
Flying under the radar successfully still
is the HD worth the extra money over the 02?
I think you can make a really good bike with either. It depends on how much power you want to run. Are you thinking stock or modified. On balance the HD is tougher and more reliable. But if you won't use the extra oomf the 02 is totally viable.
@@HighVoltageKits stock some comments about controller failure on 02s
hey man, how has your setup held up over the years?
Like this mate ruclips.net/video/Ou9pNrJx3xE/видео.html
@@HighVoltageKits bravo!
Thanks good info!
Thanks!
Just wondering where I can purchase the connecters for the battery to the motor. I see yours are yellow..are they a special connecter and do you have to do some soldering? I hooked everything up but because the connections that come from the motor to the battery are both male ends it won’t connect. I live up in northern BC and find it hard to source parts, so any tips would be appreciated..thx!
I am sure I can help. I have a ton of connectors I can send up. They are called XT90s Usually you have a female end on the controller and a male end on the battery that has an antispark. Would be good to see some photos tho. We run a discord server you are welcome to join and post. Its a good way to get advice and help with ebikes. discord.gg/zGpNaxRM Best to download the phone app or the pc app and then click on the link. Its basically a bunch of ebike related chatrooms with a messaging system. You can find more about us at www.highvoltagekits.com as well. Hope this helps.
I wonder if you could run this controller on the BBS 02 with 60v ??
I think you can get an upgrade kit for the 02. When you mean 60v do you mean 60 volts nominal or a fully charged 52 volt battery?
@@HighVoltageKits 16s 67.2 v
Can you please tell me what your Triangle frame bag is?
It came with the battery from em3ev.com I think they sell them separately. I heard of a brand called moose trek that look good as well.
@@HighVoltageKits Thank you.
Hi is that a silent rear hub?
This is the Bafang BBSHD
@@HighVoltageKitsI know but the rear hub on the bike is silent
Hey cpt Codswallop, sorry don't know your name yet, I am seriously considering the bac800 for my bbshd build as well as the nxt display because of you, I see you recommend it but I also use alot of PAS mode and I was wondering if it brings any value for non throttle use to upgrade to the bac800 controller
You will get a ton more power just using pas as well as a smoother operation. How come you dont want the throttle tho? If it's due to laws you could always have it unplugged and then plug it in offroad. Or even wire in a switch to disable it?
@@HighVoltageKits ya I used to ride on the don valley trail in Toronto but now moved to Barrie, I have to go on the road to get to work, wasn't sure how the law is here
The law most places in Canada is 500w but throttle is ok. I have the legal option at the push of a button. As long as you ride safely and show courtesy to others I cant imagine you having issues in Barrie. Cheers
Hey still doing the giveaway for eggriderv2? Just got my hdd2 bafang 750 with 52volt 12amp I get 27mph now how can I get more.46 chain ring.with 9 cassette in the rear with smallest gear in the rear about 27mph .thsnks in advance
Thats pretty decent for that setup. You can push more into the motor potentially. Join the discord and post in the builds and see what people are using. Link in the description. Cheers
I have 250w middrive yamaha motter..is it possible for me to covert it to a throttle only to do at least 25mph...its a giant fallon hard tail with a 500w battery?? Any help would be appreciated
There are chips you can buy to unlock bikes but it's not something I am familiar with. Does it have a throttle right now?
No its a giant hard tail mountain bike...2021 model am not sure what they peak at? Trying tofind put if i can get more watts out of the motter then put a throttle on to it...our just put a hub motter on an hook it up to my stock 500w battery
The difficulty is that they are usually closed systems. You might be able to derestrict it and get a power boost but a throttle addition it unlikely.