How to fit a BBSHD motor! Size guide to the Bafang BBSHD / M625
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- Опубликовано: 11 июл 2024
- New Bafang BBSHD / M625 Mid-drive Motor Sizing and Fitting Guide - Will it work with your frame?
Seeing as there is a fair bit of interest in the New update for the BBSHD motor I have put together a video to describe the considerations you need to make when seeing if the motor will fit your bike frame. Or the things to look for in a frame when you want to build a BBSHD powered ebike.
If you are looking for a BBSHD check out Golden Motor at www.goldenmotor.ca/categories...
electricbike.com/forum/forum/...
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As well as the videos there is an active community of bike builders on a Discord chat server. It is a great place to post questions and get help. You are welcome to chat to me about ebikes there as well. It has become a really vibrant community of over 600 members and a melting pot of ideas and inspiration as well as good friendly chat. / discord
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If you need a custom motor tune or harness please get in touch for a quote. Should you be having issues with your ASI controller please get in touch also and we can see if it is something we can help with.
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The BEST BBSHD upgrade kit on the Market!
If you are one of the many proud owners of the BBSHD mid-drive motor but you are feeling like it could use a little more grunt, then we invite you to unleash the beast with our High Voltage ASI-powered BAC855 upgrade kit. With this kit, you can TRIPLE the power and performance those wimpy Bafang techs recommend and end up with a top performance ride!
The High Voltage BAC855 upgrade kit is the only plug and play upgrade kit on the market that includes proper thermal protection for your BBSHD motor. Attention to those kinds of details along with top-quality wiring and best-in-class customer service make this the most premium upgrade you can get for your motor!
Note: These are not replicas of existing ASI reference designs. Instead, this is a brand new custom-design configuration that is based on countless miles of real-world on and off-road riding. Visit our website here for more information.
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Best presentation of the critical fit issues I’ve ever seen.
Thanks very much! Cheers
This is the most detailed video I saw about fitment of these engine. GREAT GREAT work.
Thanks Steph. Appreciate the kind words. Cheers
Very useful guide for me as I had a bit of trouble getting my head around what to consider in relation to fit. This made it a whole lot easier for me after watching so many other conversion videos. Much appreciated.
Awesome 👌 Mission accomplished. Glad it was of help.
An excellent video explaining the topic at hand. Thank you.
You have become my "go to" channel for information on e-bike building info based on the fact that you explain things so well.
Thanks Mac. We also have a discord community you are welcome to
to join via the link in the description. Cheers
This is by far, the BEST video I have seen explaining the considerations one must take if one is going for a Bafang motor. Thank you for posting!
You are most welcome. Thanks for the kind words.
Awsome explanation, I just received my BBSHD motor and installing it on a hardtail fat bike. I have been watching all of your videos, especially since you live only an hour away. You definitely have a big fan here, thanks for the help.
Awesome stuff! If you want to join the channel discord you can post photos and meet a bunch of other riders! Cheers
Thanks for putting up this kind of data. It helps fill out some questions. Be Well.
Thanks James, you are most welcome
3D Models are so useful when explaining~! I've read a lot of this in guides before but Im a visual learner no doubt. Thanks again Capt as always!
Thanks mate! Cheers 🍻
fantastic video, so many details you could only learn by trial and error given right here. Very useful information to keep in mind for my build, thanks!
Thanks. Appreciate the kind words! Cheers
The most perfect description of the issues, thanks for all the effort.
You can see from the frame I used in my FS fatbike, I found one that would allow the motor to sit behind the BB..much better for dropping over rock edges.
Though the frame has other issues :(
Always a balance. Glad you like the video. Cheers
Very well put video. I knew these things but I will use your video to help others with problems on their mid drive builds.
Thanks! Appreciate the kind words.
Super helpful, thanks for putting it together!
You are most welcome! Cheers
Well explained and nicely done. Good job, mate!
Thanks for the kind words! Appreciated
Excellent tutorial. Thank you!
Welcome, Cheers David
Another great video. Thanks!
Thanks 😊
Excellent tutorial bro. Thank you
Thanks mate. Appreciated! Cheers
that helped me a lot and clering up some things thanks
Great to hear its doing its job
Great info! I’ve been looking at full suspension frames for this motor.
Cool! This is a new build that I am doing with a friend. It uses the specialized big hit. Its an old frame but they go for a decent price these days. The battery will be harder to mount though ruclips.net/video/FB09c2l8328/видео.html Cheers!
Thank you for this.Very informative 👌
Cheers Mick
This video is tremendous help! Thank-you.
You are very welcome!
@@HighVoltageKits one other question please, do you know if swapping a smaller or larger BBSHD axle is the only requirement for adapting (my) motor to fix different sized BB and chainstays? You knowledge seems quite high on this stuff.. so I am asking in hope you would know. Also I checked out your site, seems you make magic with a 3D printer. haha! Kudos! subscribed.
Good info, well presented 👍👍
Thanks mate! Hope your bike is going gud
Thanks for your videos on bbshd, in my opinion best on youtube!
Thanks Mr Cook! Cheers
This is highly informative.
Thanks Noe! Appreciated
This video is god tier, thanks
Thanks Kevin, praise indeed. Cheers
great video... highly appreciate it. thanks
Glad it was useful. Thanks!
Excellent!!
Thanks 😊
What an exelent informative video!
Thanks 😊
@@HighVoltageKits I will share this for the beginners who are looking for buying these motors :D These things come naturally when you have dealt with these but for beginners these things don't even cross their mind
Thanks. Appreciate the kind words. It can be tricky to find the right frame at times.
It might be useful to 3D print a true to size shell of the BBHSD to mimic the unit with the various spacers so that people could trial fit it to their bike before making the big decision.
That is a good idea. I think that a tool could be made without the whole shell. Just enough to hit the main spots like the chain stay and the down tube when rotated. Cheers
Great content. Regarding chain line. I dont think you mentioned but a lot of people including my self also use a chainring that has an offset to allow a better alignment. But since this is new I dont think new chainrings with various offsets exist yet. It worked great on the older BBSHDs which I agree has been bullet proof so far with over a year and half of riding mostly on mountain bike trails.
Thanks Georgio. I have to update on this motor when I get chance. The existing lekkie stuff does work with this new motor! Great points on offset. Cheers
I had to modify (or rather my bike shop) had to modify a lekkie ring specific for the BBSHD motor. Since my motor is the BBS02 , the holes did not line up. The bike shop modified it since I needed more inward offset that the BBSHD lekkie ring offered vs. the BBS02 version.
Now the bike barely if ever slip while on the rear cogs. The chain line is dialed in really well now. It used to slip really bad under throttle on the smallest cog.
I'm running a 52T front lekkie.
I'd like to experiment with a rohloff hub using a BBSHD , then you have one single chain line to dial in.
Oh the memories it brings back and me thinking I wanted a 13 sp rearend. At least i can climb every hill in town. I had to have a special wheel and a special order bolt through axle cause i wasn't about to try it with a drop out or any thing else that could fall apart.
Never even heard of a 13!
@@HighVoltageKits Nothing easy about it all but it come with a 50 tooth low gear which is nice. Lining the cassette was an issue so I can't make use of the high gears any way. Live and learn.
50t. Wow. I thought that my 42 was big
nice
Very useful info, and mentions issues I've already thought of myself. I'm looking to build my first e-bike and need a bike to start. My main questions involve where the final chainring position will end up with the motor installed. I'm assuming the chainring should pretty much be where it was originally for a good chain-line. But the bikes I've looked at have chain stays that flare out really wide immediately from the crank area, making me wonder if a larger chainring will fit without hitting the chain stay. I know I could space the chainring out but then the chain line might be too far off. I wish there was a list of MTB bike brands that are the most suitable for these mid drive Befang installations. I wouldn't want to buy a bike to realize that I made the wrong choice for this.
There is a list of good bikes on Endless Sphere the web based version. I should copy it down at some point. Hardtails are easier to work with than DH bikes. Older DH bikes are easier than newer ones. When I say DH I actually mean full suspension. You are right to be wary if the bikes have flared out chainstays as they will almost certainly push out the chain line and make things hard for you. You are also welcome to join out discord and post photos of frames etc. Maybe people can help you find a good frame that will work. The Tales on Two wheels blog is well worth checking out as well. Lots of good tips on there. The video for that is about 5 videos back from current.
Really useful information....I’m just about to purchase a kit for my surly pugsley fat bike and just assumed that as my bb she’ll measured 100mm I would need the 100mm kit..would you say the 120mm kit is required?...
Well the bit you need to figure out is if the casing of the reduction gear hits the chain stay and requires a spacer. I'd it does then yes you might need the larger size. If you want to join the channel discord server you can post pictures to look at. discord.gg/ScWuVxu9 Endless sphere is good to search as I reckon this frame will have been used before. Hope this helps. Cheers
love your models!!! did you make them on solidworks? did you share it somewhere?
The models here were almost all from Grabcad. I personally model in Fusion 360. Mainly cause my friends do.
Great video 👍 would you know if there’s clearance issues with a fixed ISCG mount?
I am not quite sure what that is Matthew, can you post a link?
It looks similar to this one
Thank you Captain! But there were the same mounting problems with the old version of the BAFANG BBSHD. Does the new model cause more mounting problems?
In terms of clearance to the ground the exact same problems or restrictions to frame type remain to the best of my knowledge. The requirements for the strap and the bracket with only one bolt and less torque could well make it more tricky on certain frames without extra parts or custom work. Good points. Appreciate the comment
I've been building, This will be my third e-bike and was going to be my final e-bike. I went and bought a carbon fiber Chinese knockoff gravel bike. It is fantastic! It looks awesome but it has that weird BB dip where it then meets at the rear fork parallel but I forgot what the dip is for or something for the chain so you can get to it easier or something. But like the bottom bracket has one side protrudes way lower than the other side. It's a weird looking angle. I didn't know that I got the upgrade kit. I got the high voltage upgrade kit bought a brand new bafang mid drive motor and it hits that little bump and it's carbon fiber so it's not like I can shave it down. Do you guys make some weird like it won't even align up straight with the bottom bracket hole at all. It's off by like a half inch and I'm debating about giving up and just going with a hub motor but then I can't use a hub motor because it's a thru axle and so I wouldn't even be able to get the hub motor on the frame if I wanted to without professional help. I guess I don't even know if you can take the axle off the motor and then put it back on and our own backyard anyway... Lol.
On a side note, e-bike magazine or whatever the e-bike magazine had on the cover said it was the world's fastest aftermarket e-bike and it was on a heavy mountain bike frame and could go a top speed of 70 mph and like 0 to 60 in like 7 or 8seconds. Said it was the fastest street bike out there. The current bike I have now can go over 88 mph and 0 to 60 in like 4 seconds if I can control it without snapping the chain. With only 3000 watt mid drive motor .there was like 5,000 watt hub motor. They're hub motor weighed more than my whole bike put together . And it is completely carbon fiber except for the battery and motor. Everything else I mean everything else down to the carbon fiber. Spokes the rails that hold the seat are carbon fiber. Everything is carbon fiber. The whole bike weighs less than 35 lb and I mean it is futuristic to the max. It is a road bike. You never see people converting road bikes. I always thought that was weird because I want the fastest road bike. Haven't been like to drive a car since 2009 and when I keep up with cars and the bike lane next to them it is hilarious. Seen their expression because they can't seem to accelerate faster than me no matter how hard they try. Even the Ford mustang GTs are the only one that can almost accelerate faster than me. Am accelerating using pedal. Assist the whole time not the throttle. If I were to use the throttle it would be ridiculous. I would burn rubber on my 700c tires is kind of funny. I keep it in the lowest or the highest RPM gear and Mike acceleration is through the roof. But I want to make the fastest gravel bike in the world and I would feel much safer putting 38 mm to 45 millimeter mountain bike tires on Earth road. Bike frame would be epic and now I'm a little sad cuz a problem and I don't want to have to buy another carbon fiber gravel bike frame. I took it two months to get here from China
Best thing I can suggest is to use the link and join our discord group. You can post pics and video there and get help. Carbon can be a tricky beast. The torque arms might be an issue as well with carbon. Hope this helps. Cheers. Oh. Discord link is in the description.
Where did you find your CAD models of these bikes? Do you know of any for the Cannondale Prophet?
Also, where did you get the model for the new BBHSD? I would like to model my bike (in SolidWorks 2018).
They are from Grabcad. I did not see that one though. I use fusion 360 myself. The bbshd was also on Grabcad. I can send you a version. If you are on discord this will be very easy. Not sure if I gave you a link? discord.gg/GzchV7W9
I do not see a 120mm version of the Bafang M625 available as of yet. I would imagine the 100mm Bafang M625 would still have problems fitting to most modern Fat Bikes because of the chainstays. Also, the company (Eunorau) advertising the Bafang M625 motor states on Aliexpress that "Bafang M625 with CAN protocol, the motor is only compatible with BT F22.960. C battery". Seems like the new motor has very limited options.
Yeah. I will look into the updated information. I think there will be workarounds. Em3ev and luna will not want it this way. It's bafangs choice but I imagine they will just be leaving alot of business on the table restricted in this way...
Thanks for the video. You mentioned you had to use a120mm and spacers on your fat bike. I have a 2013 Salsa Mukluk bare frame with a 100mm bottom bracket. Do you think I should order the 120mm just to be safe? Thanks
I would. If it's anything like mine the 100mm won't clear the chain stays.
Thanks very much.
What are the weight differences between the hd & the m625? I heard it is made out of magnesium. Can you pull the same power out of a bbs02 w/ a asi800 compared to a hd? The reason being I've seen options for a belt drive on the o2 but not really for the hd...any thoughts? I'm really set in converting belt drive bike there is one person I've seen w/ a hd running a belt drive on the same bike...he had told me that his conversion was a custom machined front chainring adaptor...it seems a bit over done. I'm working w/ a 104bcd 42t front sprocket...i also got a gates 39t sprocket as well.
I am not quite sure. If it has been reduced in weight by the magnesium I doubt it will make much difference in the grand scheme of things. Belt drive is nice and quiet. It is doable. Check out endless sphere for belt drive info. There will be many who have done it. I thought there were kits out there already. Gates I think does something. The new BBSHD chain ring uses bolts so perhaps it will be easier to adapt. Sorry for the late response! Cheers
The M625 adds a huge (literally) additional issue of requiring the proprietary Bafang battery that comes in one, giant, ugly, form factor.
Its hideous. This is a video where I take it apart. There are a few other as well. ruclips.net/video/3u76ZYn54A4/видео.html Will have one this week switching the bbshd controller in. Cheers!
I would like to have a bottom bracket drive utilizing a belt into a Rohloff drive on a disc brake wheel.
You me both mate. I just don't have the cash! Cheers
I am thinking about upgrading my controller to the Phase Runner. I was wondering what your experience doing this is like? Thank you.
I have not used it myself. We do sell ASI upgrade kits under the high voltage brand. That's a similar upgrade but with a nicer display and a good bit more power! Cheers
Do you know of a supplier for an adapter when the bike has a larger diameter bottom bracket ie.41mm
There are ones for PF30.. You need to determine the standard and then search for a conversion from that to British Thread.
do you know if a bbshd 100mm will fit ok on a 68mm bottom bracket with spacers?
You will be able to fit it. But the chainline might be an issue.
Hello 👍 ,, you can change the pin (motor) that enters the frame of the bottom bracket,!?
Let me explain,. I took the 100mm but, Pultroppo with the dissosamento chain crown house we are not there. He strains too much arrived at the 9 speed, from 10-11 goes hard and eats the iron.
Since I have a 148×12 mtb wagon. No more margin even with picnic crown that I recovered 5mm .. Nothing! It doesn't work. So I would like to try on my old 26 rockrider 5.2 mtb.. Or at least frame that can mount this 100mm with normal mountain bike front wagon
Its hard to understand exactly what you mean. You are welcome to join our Discord group and post pics and video tho. Hopefully we can help. discord.gg/Jqtdzyy2Be
Thanks for the helpful video. Can you confirm the dimension of British thread BB is 68 to 83mm not 68 to 73mm ? I have found the later dimension of 73mm max on a BBSHD supplier's website.
According to the sizing guides online the 83mm bb would need the motor that is sized for 100mm. You are welcome to join and post pictures on discord to get further advice. It's not just the bb width but also chain stays and clearance that factor in. discord.gg/WqY3qce97P
@@HighVoltageKits Thanks for the reply. I haven't figured how to use discord yet. Can't remember my password and can't "claim account" . I read your reply on my email. On the video "How to fit a BBSHD" says to 83mm . I am looking for a project full suspension bike with British BB . I found one of my own bikes with a BB about 78mm width . British BB seems to be the best choice .
Maybe it was a typo error saying 83mm?
For the bbshd yes. You can get pf30 adapters
You mention a link to downhill frames that work well with a BBSHD? I don't see it.
electricbike.com/forum/forum/builds/ebike-building-directions/14686-a-list-of-full-suspension-bikes-that-a-shark-pack-will-fit-on-the-downtube-pictorial I think this is the one. Cheers
@@HighVoltageKits Thanks.
This new generation of bafang motors are objectively fantastic but for the owners of the old models were left a bit in the lurch. I'm very confused as to what's going to be swappable between generations and exactly what the difference between the news models internally. Then also I saw a lack of 120mm models? And also programming these like the old ones seems harder. Confused.
You are not the only one. I reached out to a few places and information is slim. Ots meant to be available today so perhaps more information will be available. I suspect parts for older models will still be available.
OMD !!! Your opening lines !!! HAhaahaha .... Doh!
Oh yeah. Sorry. I'm bagged. Long long day! Doh it is
I don't understand. I just bought this blindly tonight and read some comment after the fact about having to buy their battery. I just bought a new 43ah 52v battery I don't want to go back to a 20ah battery. Can I use my own battery ?
Not 100% sure some say no. Others yes. I will be getting one shortly. The controller may be locked to 48 volts..So I will be seeing if the external controllers work still. If you need help you are welcome to join the discord group.
I have regrettably come to the conclusion that my Giant Reign 27.5 2 might be a bad ebike conversion due to the sloped lower tube.
I really love that bike, but think it would get a terrible ground clearance due to this.
Yeah. Its a tough one. There are the CYC motor kits which offer a bit more flexibility although they are more complex in general due to the dual chain design. Maybe you can find a trade?
@@HighVoltageKits yes, I think I might just buy a new eBike, or of course it would be possible to buy an ebike frame and transfer the giant reign stuff over. But the Giant bike is in very good condition, so I would feel kindof sad parting it out also :P
What do u use if u have a 86mm BB ??
Good question. The regular one is 68-83mm. So might be ok. It depends a bit on your chain stays. You could always join our discord and post a few photos of it.
LOL found out to my misfortune today it didn't fit my frame which was a 16"! Got a 19" Dawes bike
Off gumtree on it's way tomorrow so should? Be ok
From what I remember Dawes use British thread so if its a hard tail you will likely be good. No way of knowing for certain though without seeing the frame and bb. Good luck!
Been on Ebay all day looking for frames I'm 5ft 7 and I want an aluminium one with up to date geometry .phew..
My tsdz2 motor will not work without modification on 2 frames that have internal cable routing, at the bottom bracket the internal cables exit blocking the bottom bracket.
I know a few people who have ground off those points. Should not be structural. This video is more about general mounting. I think the tong shen is similar in how it attaches tho.
@@HighVoltageKits wish bafang fit more like the cyc inside the frame. That semi integrated look is nicer than bulge at the bottom bracket.
The mounting is the key advantage of the CYC. It has its own problems tho. They can do it with the chain reduction. Bafang could improve things but it would need a complete redesign.
What are the main differences in the old and new BBSHD?
So far the mounting is a bit different and uses as steel strap to help hold it up. Other than that it looks cosmetic... however until I get one I won't know for sure. Did you see the video I did on it? All the info I have is there pretty much. Hope this helps. Cheers 🍻
Would a bbhd fit a 2017 cannondale bad habit carbon 2?
Looking at it I'd say the motor would hang very low. Id try searching on endless sphere to see if it's been attempted before.
@@HighVoltageKits yeah thats what im thinking. It is not recommended for carbon frames.
is there a reason I hardly ever see these motors attached to roadbike or gravel bike frames?
I have seen a few but mountain bike seems to be the most common. Bruno Power had a nice road bike build that he modded to go silly fast. Not a bbshd but this video is footage of my Salsa Vaya with the CYC ruclips.net/video/_3C7GdjVc7Q/видео.html The vaya frame is very much a touring one that us also a favorite of gravel riders. Cheers 🍻
Hello! I have had issues with this motor coming loose after tightting it with the correct torque and additionally applying Loctite to the grey Locknut. Raised ridges are facing the bicycle and are bitting into the frame but after some time the motor comes loose. It's a very annoying problem I have that prevents me from enjoying an otherwise great kit! Any suggestions people?
Hi, suggest you join the channel discord server so you can post photos. This is the link discord.gg/YAAjfgc works best on the phone app so you can use the camera easily. There are brackets that can help with this but it would be good to try and see a bit more of what is going on before you buy something. Hope this works. Cheers
I also had this issue. You should also look into getting a Brace from Luna or California Ebikes. They have a couple of different versions that are nice.
@@jasonspector After I retightened it again with a ridiculous amount of force (torque) it has not come loose yet. I also put a bit of Loctite on the threads, not as much as the first time. I tighten it so hard that I wrap the tool I was using, just the simple one that came with the kit. I should also point out that I also used an DIY extender bar of about 1.5 meters to apply more torque. I tighten as hard as I physically could.
Sounds good! Great to hear. Cheers
@@TGUGCL The tool to tighten this is very hard to get tight. Especially if there is anything in the way. The best advice I saw was use a mallet to tighten it. That seemed to work for a while. The bracket or brace solved my issue thus far.
I have the best DH frame for the motor is the mongoose boot’r
Awesome thanks for this. The link for anyone is www.mongoose.com/products/bootr-1 There is a geometry diagram which is nice! Cheers
The old one 2012
Thanks! For clarification
New app google app store - speeed app - increase speed buy cable from ebay
Already program cables on ebay hey. I have already heard of a few people running into issues already. I guess will find out.