DuB-EnG: Building an Electric Bike DIY TSDZ2 Budget eBike 36v 15Ah 250w for £400 Build Test & Review
HTML-код
- Опубликовано: 28 ноя 2024
- 30MPH eBike Build - Complete Instructional BUILD Video, Review and TEST RIDE. How to fit the Chinese TongSheng TSDZ2 mid-drive motor to the bottom bracket of a leight weight aluminium road bike with hybrid wheels. Some of the challenges for the smaller frame and larger wheels, gear cables and brackets that had to be overcome with a nice ride out and final review!! This bike is SOLAR CHARGED!!
Great video. One solution I’ve seen for that bracket interfering with the wheel is to remove it entirely, rotate the motor forward as much as you can, and add hose clamps to keep it fastened to the down tube. Reduces weight and increases ground clearance.
Thanks for the info! - Great idea!! Thank you!
@@DubiousEngineering hope my description was clear, this is what I’m talking about: cdn.shopify.com/s/files/1/0254/8239/5700/products/DSC_0157_900x.jpg?v=1634319380
I watched a lot of videos on this kit. Yours is the best. Thank you so much!
Wow, thank you! - Very happy you like it, I'm still using it and I love it!! (May have to make a smaller battery pack though!)
This is exactly what I was looking for. Thanks for sharing!
I'm gonna sell it! Only because I'm running out of garage space!
Important: before you slide the motor shaft thru the bottom bracket. clean it out then put some anti seize molly grease otherwise the motor shaft can freeze in the bottom bracket and you wont be able to remove it..
This is very good advice!
@@DubiousEngineering I bought a used bike and didn't realize the seatpost was frozen.. not sure if it will be able to come out.. good thing it is close to my height.. LOL
Thanks. You've convinced me. I like the torque sensor because it allows me to keep my hydraulic brakes. Plus its lighter and cheaper than the bafang mid drive.
I still enjoy riding this bike a lot :-)
@@DubiousEngineering Gonna buy this kit. Could you please let me know how has this kit been doing for you over the months. Thanks! Excellent video btw.
Should have gone with either the 500w or 750w motor after seeing that you had to work that hill. Good install though and very impressed with you not letting little things stop you from doing the installation.
Agreed!!! I may well upgrade to the 500w at some point, but that said after tweaking some of the computer settings, this thing take so much effort out of riding!! Thanks for your kind comments!!
@@DubiousEngineering be careful as there is a uk law of max 250W on roads and public paths. The police might not care till you are involved in an accident. Apparently the power rating is controlled by firmware, not the motor? Really useful as I've just ordered a kit 250W of course.
Thanks Gordon!! I do plan to hack the firmware at some point!!
That is a cool kit. I never heard of these before this. You rock my friend.
thanks Pat! .. I really appreciate your words of encouragement! have a great weekend mate!
Best TSDZ2 install video on RUclips! It offers a real-world experience, complete with drawbacks and hurdles and offers clever solutions. I do have those two cables under the bottom bracket. I will have to address those. Thanks for the tips! And nice music work too! (I'm a musicman myself ;) I haven't ordered my TSDZ2 yet (still debating between that and Bafang BBS02).
Glad it helped! Thanks for your feedback!! It's been a while since I wrote any music, need to get back on it!! Howard
@@DubiousEngineering Yeah, diving back into music requires inspiration. Back to e-bikes, I'll be going with the TSDZ2 because it's cheaper and from all the research I've done, everyone claims it gives you a more natural human-powered pedal feel. The Bafang feels more like someone is pushing you when you pedal while the Tongsheng feels like you have bionic legs. If this is true, I will like the Tongsheng better. I'll be ordering in a few days! Thanks mate! -Rex
@@hermogino And did it all work out?
@@mart43 I will finally have time to install the TSDZ2 I ordered last week. I ended up selling the Trek bike that had the cables running under the bottom bracket. I have a new mountain bike with the cables running across the upper tube. The install should be easier.
@@hermogino Ok cool, if you can let me know how it worked out for you. I am thinking about doing the same thing. But I don't know how difficult it is going to be.
Great video , simple , and great little helpful issues that you would not of thought of .
Thanks,
Ed 🇨🇮
All the best Ed 👍... thanks for the message!
I did the same but with a carerra kraken and 350w 36V tongsheng. I had the same gear cable problem so I removed the guide blocking the motor and used an outer cable from the selector to the gears. Nice motor. I paid £248 for the motor.
Very cool!!! Thanks for the info!!
this is the libre transport of our cyberpunk dystopia
Haha - they are very useful! No doubt!
Hiya. at 16:35 I see a recessed male connector on the battery. It's a safer idea to keep to the convention that it be a female, in the unlikely (cough) event of dropping a threepenny bit or a spanner in there and letting the magic smoke out. They are available, as are right-angle shielded male IEC connectors. I like the TSDZ2 and have done 2 bikes for myself as I reckon I need a backup.
Yeah, that came with the battery…. I’d much prefer an XC60 female in there!
Great video, I have a 500w motor on order, am going to use a 36v rack mounted battery with it. I was wondering if it is going to be powerful enough to pull a small trailer, if so I will load it with camping gear and a flexible solar panel to charge an additional battery during the day, then swap for the next days ride. Hopefully this could mean days of off grid riding around and camping.
I think as many ebike users as possible should write to MPs and complain about the feeble power limit holding back the travel revolution
Oooh ... you'll need way more batteries and panels to pull a trailer... unless you're in the south of France in the summer ☀️
is that a square taper crank..? if so, shorter riders can put on the Bafang 152mm crank arms.. that is important for shorter riders, other wise, putting your foot on the pedal will be a challenge as you have to lift is 20mm higher to get the second foot on, And it saves the knees (pain free riding)
I had no idea they offered shorter cranks!
Excellent video, do you get any resistance from the motor when you are cycling with it switched off?
I've not tried!!! :-) 😀 ... too much fun with power!
@@DubiousEngineering 😏
I understand that this method only works in some frames. I had a carbon bike with the Aston Rider kit and I switched it to a bamboo bike in 10 minutes and I didn't have to cut any cables
That’s good to know!! Thanks!! :-)
just loosen the screws/bolt on the cable guides to back them off, then put the shaft thru the bottom bracket and tighten them back down again..
As you can see, this was my first bike build…. Lacking experience!
@@DubiousEngineering You did a great job. i have built 4 conversions now... those were with bafang kits.. if it is a square taper, the 152mm Bafang will work..
Enjoyed that👍, I currently use my 1000cc Adventure Bike for a 12 mile commute into central Southampton TOOO BIG lol. I’ve got a 2008 Mongoose hard tail mountain bike hanging up from the garage rafters - you’ve inspired me. I think I’ll probably go with a 750w motor and slap on a few 250w stickers from eBay and ride so I don’t attract attention. Couple of observations, I’m assuming that puller that stripped the the threads was Chinese? I like to use a torque wrench especially with alloy parts (assumed they are), just wondering what kind of numbers NM’s for tightening up the bottom bracket?
I'm so sorry... as far as torque... recommend Google. I just went with good n tight but not too tight 🙃
Love watching a bit of Dubious Engineering at the end of the week with a beer :)
hahah... you superstar! ,.. beer and chill... it’s the end of the week! :-) ... cheers and beers mate!
Nice work thanks for sharing, how is the motor performing over time?
We got an electric motorcycle... I must admit I haven't taken my converted bike out for ages! I should charge it and pump the tyres!
Thanks for the video. Good effort on the build. Seems a good bike.
Thanks Nick!
@@DubiousEngineering thanks, all the best! Keep keeping on!
Nice video! This is the first one I've seen where the cable guide was mentioned. I'm installing my second TSDZ2 and I ran into the same issue. The cable guide sticks up too high. It's nice to see how you dealt with it. Did the plastic guide have a closed loop that opened up when you shaved it down? If so, does the open channel have any problems with the cable popping out?
Thanks.
Glad it helped, no problems, i filed it down, and then cut a small channel - the cable is always tight, so no problems with it popping out - everything is good.
loved the comedy value mate :)
Glad you enjoyed it! - Ha ha!! Thanks for watching!! :-)
Thanks for video👍 This build could be done in an hour if everything just fitted. Nothing is every that easy! I've spent days trying to get it all to fit😫 I think, If you add the thumb throttle [ It is now classed as a motorbike! ] So you will make it illegal to use on UK roads. Of coarse as will removing the speed limit on the computer. If however your speed sensor gets unplugged, [ by accident ] the computer will not limit your top speed 😏. The 42 tooth chain ring it comes with may also limit its top speed. I'm now looking for a private road to test my TSDZ2 powered bike's full top speed! 😁
Please keep us informed of the top speed after your “private” test :-). I can just about do 36MPH ... not bad at all!! I didn’t add the thumb throttle but have hacked the computer :-)
I'm rebuilding my bike (not used in over 5 years). Where did you get that fine saddle. Also would it be possible reconfigure that battery pack into something a little sleeker that could fit into the frame space? Btw really enjoyed watching.
Ha!! I edited out the chat about removing the batteries from the container purely because I thought no one would care!! How wrong was I!!! Saddle was an eBay job, just look up fat bottom saddle ... :-). Thanks for your kind words and support!!
@@DubiousEngineering Thanks 👍
First of all I like to watch convertions as I feel we all have a reason to convert a cycle rather then buy a fsctory made one, there is more reason to convert a mid drive then a hub motor as convertion kits for hub motors can be more expensive then a already made ebike, but mid drives the kits are a lot cheaper and cheaper to like this guy if you already have a bike to put a kit on. Last year I brought a ready made ebike from Argos £650 it looked good it was front wheel hub motor, at first enjoyed it but during the first 10 months had that many problems with it kept cutting out, chain kept coming off, gears changing unproperly and brake failure, was going to return it but after watching videos on mid drives had a better idea to convert it into a mid drive.
Cycle had places to hide cables and already had battery and rack so bassically all I needed to buy was convertion kit which I got the Bafang convertion kit £350 without battery, , I would say only 50% of the original cycle exists the frame, forks, handlebars, back wheel, battery and rack everthing else as changed, brake levers as new btrake levers have motor cut out, gear shifter, wiring, controller, motor, chain guard, mudguardss, deraileur. Was the cycle really that bad to change its componants it came with? Yes because the parts looked cheap and sounded tinny there is no need for metal chain guards or mudguards today they make some very good ones out of quality plastic which don't rattle when riding your cycle.
Was it worth it doing my own mid drive out of a hub drive? I would say yes because I have lost nothing a decent ready made mid drive with a good motor are £1,800, take into consideration this was a £650 ebike I converted with a £350 kit and then extras it sounds expensive, but out of the original ebike I got to use a frame where you can hide the cables out of sight and a battery so another cycle and battery would of probably set me back £450, the old kit I got with bike fetched £150 so didn't loose much as I would of only got my £650 back if I returned it. I was lucky because I had a old damaged cycle I could take parts from like front wheel to replace hub wheel, deraiuer and shifter so I would say buying like mudguards spent £50 on parts. But with most cycles you buy they don't come with these parts anyway and once you go for disc brakes your talking £200 plus for a decent cycle but that is without places to hide your cables so yes it was worth it because I still got my build for under £1,000 so mid drive are well worth doing your own as they are expensive and reasonable priced ones can be difficult to come by, Before the convertion I would give 4 out of 10 now 8 out of 10 and call it my 50/50 because only 50% of the original cycle exists 50% as been swapped or changed.
Brilliant work 👏 👍... mid drive is by far the best way to go and adds much less weight to your bike too!
Nice build! For a 42 tooth gear, you must be spinning out the pedals at top speed?.. That's a really fast for a 36v 250w bike! 👍
She flys for the low power variety!! ... if it would stop raining in England I’d love to get back on it!!!
I agree with the video, even so, I prefer to continue with my bromtom bike with the Aston Rider engine under pedal box, it runs at more than 23mih x for less than $ 299!
On rainy days, would the battery be alright? Awesome build though!
I’ve not ridden the bike on rainy days or left it outside... hmmm 🤔
Excellent video thanks. I'm going to do this to my old hardtail. Might have to get a smaller battery though as it's a small frame. Can you let me know where you got the kit and the battery please? Cheers.
all on eBay... I have an idea for a smaller battery... two 4Ah drill batteries :-)
Hi, i don't have understood if every version of this motor has the same torque or if the declared 80nm of torque are available only with the 750w or 500w version and with the 250w version the torque is less?
Great question…. I was told the motor is the same, but the electronics is dialled back
Another great video thanks... and the pubs are opening🍺🍻
beer beer we want more beer... all the lads are cheering, get the freaking beer in! .... pubs open, but only two people allowed to go in at one time... stay home, drink more! stay safe :-)
Hi. Have you got problems with water in the engine? Any comments suggest problems with water for this kit.
no, I haven’t ridden in the wet... so little chance of water in motor
Great project Mate 👍 😊
Thanks sparky!!! :-)
Hi there mate can I just ask if u can tell me when u were building this bike if you rotate the pedals by hand while the battery is attached and the display is on does it work? I’m just asking cause I just got this kit from eBay 48v 750W with a 48v 20ah battery for £560 and it doesn’t seem to work it and the seller thinks I’m a 5 year old kid who doesn’t know how to set it up and to be honest I’ve fitted quite a few hub motors for friends of mine and they all work great but I thought I might wanna try a mid drive motor not the bafang version cause it’s very expensive for me and wanna get a bit of pedal exercise too.. ur video was one of the convincing videos for me to get this mid drive but anyway if u could let me know when u can that would be great.
Thank you and have a great Christmas and a happy new year..
The display on indicates you have power connected properly. Assuming you are in pedal assist mode yes the wheels should turn when you hand crank the pedals. Good luck with your build
@@DubiousEngineering it does work and the other thumb button thing works too the only thing I did not connect properly is the sensor to the wheel and the frame yet cause I’m still in the middle of building it but I even tested it with it connected and used the magnet going past it with my hand without any result maybe I’ll fix the back wheel and the sensor and then try again in a few days cause the bike frame and most of the stuff is kept at my work place..
Hi great ebike video. Where did you get the motor kit from?
Thanks!! Got it on eBay - it was a while ago now.
Very cool ! got an 18 inch frame don’t know I would fit a battery to my down tube though.
Either way, you now have food for thought and an. Idea of how much effort is required to do the build... go on!! You’ll get it sorted!!
@@DubiousEngineering yes sure is can't decide between this motor or a bafang. The way this fits looks much neater though. Cool video love the shed as well.
Awww thanks 🙏... I haven’t tried the other motor, otherwise I’d have an opinion!! That said, this motor works very well for my needs!
I'm close to clicking 'buy' on ebay for one of these...
I have two questions.
Are the crank arms equally distanced from the bicycles chainstays? (The motor unit fits both 68mm and 73mm bottom bracket mounts so I assume they don't, so maybe a couple of mil out)
More importantly, 18 months in, how's it getting on?
Loved the video by the way, very nicely done.
Thanks ant man ... nothing feels wobbly or crunchy so all good so far... its had light use maybe 500 miles but some say its good to replace a plastic nylon cog with a metal one. May be worth looking into.
@@DubiousEngineering Great to hear that Mr Engineering, you'll have to cover the cog swap in a future video.
One other thing that concerns me, if you'll allow me to continue?
Apparently the torque sensor tube part can fracture and the manufacturer has replied to this issue, it appears that should the chain side large gear housing make contact with the bicycle frame in any way this failure will happen within 5k miles.
It's well documented on youtube.
The manufacturer now provides various spacers that fit between the motor unit and the bicycles bottom bracket to prevent this from happening.
What are your thoughts on this?
Does it make engineering sense?
@@antman5474 Have you found out any more information on this issue?
Will 250w motor be powerful enough for mtb use ?
Almost definitely... it will really help on the high assist setting.
Hi, how’s braking without motor shit off lever working? Does the motor stops when you stops pedaling soon enough to brake without fighting against the running motor?
Yes - exactly that!! The motor stops once you stop peddling
Dubious Engineering so no need installing levers that cut off the power like with Bafang motors?
lovely build
Thank you very much!!
Is it possible to upgrate the power to 500w??,thanks
Not sure, someone said the motor is 500w it’s just the control pack and battery that needs upgrading
Nice budget build.😄
Thank you sir!!
Where are your follow up demonstrations of your Chinese TongSheng TSDZ2 mid-drive bicycle conversion on longer rides. You indicated you would ride it to the shops rather than start the van.
When it stops raining in UK I'll deffo get some more outside videos done!! To be fair, I have ridden this bike a fair bit... the battery lasts forever, even on max assistance - I think I've done about 60 miles on one charge :-)
@@DubiousEngineering OK, am looking forward to your followup videos...
:-). I’m looking forward to getting out on the bike !!!
Nice build matey , I am considering fitting my 2012 voodoo hoodoo mtb with a Tongsheng mid motor , so found this video really useful ,
Do you have any thoughts on battery amphour capacity ? Could you have got away with less ?
My understanding is that there is no physical difference between the different power ratings of the Tongsheng motors , it can all be changed in the software , possibly by using a different open source firmware upgrade, Have you looked into this ?
Regards - Bernie the bolt from Redruth , Cornwall.
Hey Bernie!!! Suggest two DeWALT or makita 18v 4AH batteries... that’s what I’m going to convert to in the spring!! I’m even selling the adaptors and holders on eBay now too!! 4Ah should be more than enough for about 20 miles with the power assistance on medium!!! Stay warm and safe mate!!!
Great job
Thanks Angelo!
Great video...THANKS 👍👏😃🇨🇦......the thumb throttle will be a great and wonderful addition 👍 happy E cycling 😃
Thanks David... I'm loooking forward to the end of winter to get out and use my bike more :-)
Well, yes and no...
Thumb throttle doesn't work particulary well with torque sensor on tsdz2 (if you press thumb throttle while pedaling, it will pause the motor for about a second, and then tt will take control). Besides, it seems that tt would not engage the full power of the motor. The only reason i still have the tt on my bike is because it can provide a kind of "limp mode" when torque sensor fail (yes, it did fail on my bike and I didnt have the thumb throttle installed at that time)
Hi, nice video. I've got an older front suspension mountain bike that I've been thinking of converting to an e-bike. I was thinking about one of those hub motors but having watched this maybe a mid mount motor like you use might be better. You said the battery was maybe a bit big, what sort of size battery do you think is necessary ? I guess the bigger one you have is designed to go on pannier rack or something like that. Thanks.
Hello old pal!! :-) Good to hear form you! - I think a 10Ah battery is more than enough to cover 30 or 40 miles with reasonable assist turned on... Hub motors are interesting, but don't really do it for me, i think mid-drive makes a lot more sense... bosch and all the expensive systems are mid-drive torque sensors... hubs are all cadance and dont follow your effort, where as a mid drive is seeing the pressure directly from your legs and activating quickly... Hope that helps a little.
@@DubiousEngineering Thanks, so I would need a 10ah 36V battery right ?
Frigby Chilwether that’s about right ... you could get away with 7ah but it won’t last too long
I might have to do this
I’d strongly recommend it!
Hi could you provide a link for this kit?
It’s on eBay TSDZ2
Be nice to hear the motor without the music.
ahhh good point Harry…. sorry! …. well, after a 400 mile run, it’s still quite quiet! … I hear they have a nylon drive cog that wears out, but so far mines all good
Damned chinese crank pullers. The black part is definitely inferior. I'm doing my conversion now and the blasted thing cross threaded on me on the gear side as well as putting a tiny burr into my thumb. Got the cranks off, and what the hell? I need another tool, an HCW-4 bottom bracket wrench, of which there are none locally, so it's coming soon. Three week delay. Mine is a 500W 48V motor and I got a dolphin-style 48V 15Ah with all the trimmings. A few years back I had a 250W 36V hub with sla pack (3x12@12Ah) with a form factor similar to yours; the bike was heavy as hell. I'm a bit overweight and the bike was not as peppy as I would have liked, but the low gear was just fine to start it up. In my province, there's a maximum wattage of 500, so in town I'll be careful to not go over the 32kph limit. I'm getting itchy to get going. Ahh, the other thing: battery mount. Fortunately for me, there's a machine shop about a hundred yards down the way, so they'll do the rivnut install on the TOP bar. No room in the triangle. The bike is small 24" because I'm short. I'm worried that the motor retainer is going to give me grief, but not the same kind as you had. I think I'm going to change out the handlebar because it has a slight curve which impedes my dumbpewter control from moving toward center.
Oh wow... that’s a nice upgrade!! Someone said to me that the motor is the same in all of these just upgrade the battery ... but I’m a little worried that may cause the machine to let the smoke out... we all know that the smoke has to stay in the machine for it to work!!!
@@DubiousEngineering That magic smoke can get out real easy if you don't monitor the temperature. There's a few vids out there about adding the sensor (LM35?) inside the motor, but it screws with the throttle is my understanding. And you have to crack the seal. While I'm thinking about it, there's no reason for the sensor to not be independent of the Dumbpewter. As for the "motor being the same", I'm not so sure, as there is a label on mine that identifies the wattage and voltage, as did yours. But, I'm still in the ON HOLD state, as my bottom bracket tool is currently in Basildon. I suspect it will take a slow boat across the pond, land at Toronto and then be manhandled by Canada Post for a couple of weeks. Great channel by the way, it's not as dry as Big Clive, but it's got its charm. Best o' luck.
Dreadfully underpowered for my liking but good build all the same would be interesting to see how it goes with a throttle fitted or did you fit it since this recording was made.
I have upgraded to an 125cc equavalent electric motorbike... :-)
Some people still like to actually do some exercise
@@Gavthefox each to his own.
Nice build. I like the solar panels. I just added a 750w one to a vintage road bike. You can check it out on my channel. I love it so far.
Awww yes!! :-). I’ll have a look at your vid shortly!!!
Great stuff! Thanks
Thank you too!
Lovely video 😊
Awww thanks man!!!
@@DubiousEngineering I'm still in the process of building my Tongsheng but the crank arms thread have stripped out then i can proceed with the build. I really liked your commentary you are so joyful with a big heart 💖
how was the ride up the hill? It didn't seem to be as effective for you as on the flat? Do you think a smaller front chain ring would give you a better lowest gear, maybe a 40T.
Hey Mike, yeah that hill took it out of the both of us!! The bike and me!! ... but without the motor, that was a walking and pushing your bike type hill... it’s difficult to see how steep it is on the video ... I’m actually keen to try to get a smaller rear cog set if possible to help achieve a better top cruising speed :-)
@@DubiousEngineering 11t is the smallest you can get on the back for that set up I think.
@@DubiousEngineering If you had lower gears, maybe a 40 or 46T on the rear it will climb just about anything. Yours looks like a 28 or 32T? Not big enough anyway. I take my TSDZ2 mountain biking and pedal up some gnarly hills, with low enough gears the TSDZ2 is a tractor.
The TSDZ2 is quite amazing!! I continue to enjoy this ... I may look into making a cassette gear for the rear with a super high and super low ratio so I can enjoy a better top speed and a better hill climb experience... thanks for your thoughts!!!
@@DubiousEngineering Next step is buy a STLink V2 for a few £, flash the motor with open source firmware and really unleash its potential. The tinkering never stops.
Catching up after a donder, yes a real life Donder.
epic that you got out and about Dave... planning to do one myself tomorrow :-)
Great video, thanks you.
Thanks Jay!! Was a lot of fun... and a little hard work too!!
Hi there ,nice video maybe most detalied video ...can you tel me please the max speed in special just with the throttle ,thanks in advance.
Sorry no idea, I didn’t fit the throttle but it’s only 250watts so probably not going to be too fast with no leg power ... depends if going down hills :-)
I’m stealing the term “wiseclock” haven’t heard that one before.
But in exchange, I can offer you the term “ghost peddling”
Ghost peddling - when you only peddling an ebike, with no effort, to activate the motor
Deffo need to install the thumb throttle
@@DubiousEngineering is your motor cable 6pin or 8pin. Throttle wont work on 6 pin.
The most important upgrade was the saddle
Damn right jack!!! That makes a massive difference!!
saddle has also a nutbag holding feature soo i need it too for long rides
Hahaha.... I hope nothing gets stuck in the hole !!! :-)
@@DubiousEngineering don't ride it naked (again)
I have a hard tail xc，I think I will build an e-bike like this.
Do it :-). You won’t regret it!!!
Thank you!
You're welcome!
Man so for how long can you drive on this battery?
I’ve achieved about 60 miles on a full charge with medium assist turned on!
@@DubiousEngineering oh wow, thank you
how to recognize a 750-watt motor?
Good question!! - Sorry!!
The placement of the wheel sensor is telling the controller you have a 6" rear wheel. lol
you can program the diameter of the wheel with the computer... :-)
@@DubiousEngineering yes, I know. But do you program it after you place the sensor, or before? For instance... If you program it before and tell it you're using a 26" wheel, then place the sensor where you did, wouldn't it give incorrect feedback? Or... Can you just place the sensor anywhere and program it to interpret the sensors location as a 26" wheel? I was always under they impression the sensor needed to be as close to the outer circumference of the wheel in order to get an accurate reading. Whether it be a 20", 24", or 26" wheel. The sensor will count the revolutions per second differently.
@@HueMongussD It doesn't matter where you physically put the sensor. Angular velocity is the same throughout entire spoke. It detects one turn, so it knows you traveled one wheel circumference
@Tomislav Bunjevcevic maybe you can explain why the circumference of the sprocket would change your rate of travel?
@@HueMongussD sorry, haven't watched the video. If he installed the sensor on the pedals, they are allways turning slower than the wheels (at high speeds), so he effectively bypassed the 25km/h limit. Its a valid tactics as i dont see any other use for that sensor other than speed limiting. He could have just programed in that he has a really small wheel ( smaller than what he actually has) and put s sensor in normal position. It would also up the speed limit effectively.
Great Video!
Glad you enjoyed it
😁 Brilliant cheers
Whooop!! :-)
Nice
A heart warming thank you 🙏
400 pounds? That's 466 Euro where i live, plus battery?? Where???? Not on Alibaba, eBay or Amazon....
I bought this kit from pswpower, they ship from Germany and i spent 420€ in total including the battery
@@DAZprojectswhen and do you still have link to website..?
Mine was purchased through eBay - but i've lost the link, it was a couple of years ago now.... sorry!
I read a US article about ebikes and they said there is a process. 1. You have a decent pedal bike or 2 as you enjoy cycling. 2. Want but reject the price of high quality brand ebikes. 3. Buy a cheapish (100-300 $/£) chinese kit from Ebay and fit to a bike. 4. A part of kit eventually fails. New part costs almost same as whole new kit. 5. Have dilemmas over price and quality. 6. Reconsider the high quality expensive ebike. Possibly buying a second hand or cheap one and again experience problems and cost dilemmas. 7. Possibly bite bullet and buy new expensive ebike by reputable brand.
Interesting as seems true for many people. Not all obviously.
Hi Nick... its an interesting point... Lets see where I am in 3 month time when we have a 1000miles on this bike... I've seen many reports that the Tongsheng is great for 1500 Miles and then needs a little service, and sometimes a blue cog replacing, none of it looks difficult. Keeping fingers crossed!! :-)
@@DubiousEngineering thanks for the reply. I dont mean to say yours wont last by the way. It's hard to write all aspects and be brief. The article was from a few years ago and ebike motors etc improve every year. It's a cycle (ha!) of dilemmas and I'm still in it. Have a nice light sturdy hybrid bike which looks plain/battered enough to not get nicked. But I drool over the Bosch-related uber bikes I see all over (including on mountains I hike, which says something for the bikes.) But those uber bikes are heavy and I know one day I will be riding it as battery is flat and I'll miss my lightweight bike! Dilemma vortex! Great looking Carrera bike by the way, looks fast just standing still!
I have 3400 km on my tsdz2, there were some hiccups but I haven't had to replace anything yet (even the blue gear).
I keep thinking of what my next bike project will be... and I keep suggestnig to myself that what I have is perfect as it is for what I do... Thanks Nick!! - I look forward to hearing which direction you choose to go, and Truong, i'm very glad to hear you have a lot of miles on your TSDZ... It gives me hope!! :-) All the best chaps!!
@@Surv1ve_Thrive
The Tongsheng parts are as cheap as chips.
The DIY kit is really for a bike you already have. I wouldn't waste money buying one especial unless it's an absolute steal.
If you need to buy the bike, get a shop built integrated one.
the one i was dream having own but never come true but if i can not had it why people should suffer it's main flaw.... battery guys, ebike relaying from battery let see 36v, 48v, ect right why not used this to self recharging ebike, ever hear "Friction Generator Dynamo"? it can generate 12v in one tiny stuff let say you battery is 36v, attached 3 of this on wheels hehehe "SEFT CHARGING EBIKE" baby, soft wheels, solar panels, airless tires??? behold "UNDEAD EBIKE THAT YOU NEED TO SHOOT IT BATTERY TO MAKE IT STOP" hehehehe lol
hahah... it’s alive! ... how to stop it? ... I’d like to fit some small solar panels at some point and see how far I can get!
@@DubiousEngineering I made this when I was a kid in my bike, kid bike with truck lamps
I assume you meant 25 kph and not 25 mph?
😜
It’s an easy mistake to make!
Don’t want so cnut reporting you
Bahahahah
Great video. Thanks
Thanks Peter!!