Building an E-BIKE (300$) 

Watch my latest electric motor build here: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-b3uZh1AIQq0.html

I must admit. This is by far the best looking diy ebike “system” I’ve seen. Congratulations! Great work!

Wow this is the most clean build of DIY so far I see... the placement of the motor is great too.......

Sell them dude you will earn money

Quite apart from the ingenius engineering for the motor, your riding skills on the downhill trails are to be admired - well done!

This is a really awesome idea! 👍👍 We are so happy to be one part of it. BTW, wish you have a festive season🎄🎄

Great work. Can you post a ‘How To’ video, explaining the build?

Impressive DIY work!

You got skills man! I work on electric motors and compatibility and fitment is a challenge. that custom mount and battery adaption was brilliant.

Finally someone has figured out that you need double down gearing. Multiple sprockets gives a multiplication of the torque which is the most important parameter making an ebike motor solution. Well done!

Pretty clever dude !

Seriously what a build.. bravo

Genius! Well done David, Nice video 👌🏼

Great concept and locations!

Somebody at CYC motor hire this man!

Impressive stuff !

Nice work - would be good to try one of these on my old Capra

Nice compact build!

Absolute genius!

amazing, really really nice job👍

Well done on designing and building the ebike motor, looks great! After watching the video, I have a couple questions about the build. 1. What is the idler gear and spring attached to? The aluminum PCB part? 2. The motor sprocket welded/attached to the bike sprocket, was there already clearance on your bike for the second sprocket or did you have to make modifications? Thanks.

well done!, will probably build one this summer as a side project, unless you plan on selling custom ones for other bike!

Decent build!!!

Absolutely brilliant build. You clearly have a good eye, along with all that engineering gray matter. Looking forward to more of your builds. Next, I hope to see a torque-based sensor for pedal assist, and before you know it you'll have developed a system that rivals the best mid-drives on the market.

awesome! its time to show that there is not just only comercial versions.of ebikes, users experience is the best! just a torque sensor/pas will be a nice upgrade

great job

Brilliant work 👏 i wish i would know someone like you to help me build an engin like this on my dh bike❤

bro, it is so cool! build one for me 🙏

Impresionante trabajo, además puedes actualizar con baterías dewalt de 10ah, solo te falta hacer un pequeño carrenado con una impresora 3D para protegerlo de polvo y barro. Mis respetos por este gran esfuerzo.

Dude That is AWESOME!! Are you patenting or sharing how have you done?

Hi, just built the same setup, could You share more info what values You set in vesc ? Got the same gear ratio but the motor is weak, I have it set for 20A from battery. I've changed wattage from 300 to 1000W in Vest but with no effect. It is weak - i mean when the bike stays on ground motor can't even push the bike (without me on the seat).

Nice work! I really like how light and simple the motor assembly is. How is the motor holding up? What drew you to the 5065 motor instead of something like 6354?

Whats the price fir the pcb. Way parts ? Can i buy it ? From you ????

Great build and nice video. The music not so good.

Awesome

Great work congratulations and great video too!!!how many watt are in the battery?and how many Nq are in the motor ,please!!!tnx💡

Price fore the parts ?? Thanks !!!

I also built a mid drive system ebike but using scrap parts. But the motor is 5 times bigger and is 2000w 84v Has freewheel on motor & the bottom bracket crank what is homemade It has cooling mods cooling fans & more. It's very powerful & fast I use it like a motorbike and the motor heats up very fast. That's my biggest problem with it. So how does that small motor handle the heat. I can imagine the size of the motor it will be useless on a bike. With more voltage I can't imagine after 20 minutes of constant used it be ready to melt🔥 There's a reason why people don't use these motors on ebikes. But the motor is running with 20v hate may not be a problem. At that low voltage I'm surprised it barely moves without you pedalling. If it had the power You can't anyway because it has no freewheel on the bottom bracket crank. So you need to pedal at the same speed. So legs don't get ripped off LOL. Apart from that you've done amazing job. Good quality I wish I had the machine to do stuff like that. At the minute I struggle with my hands. Takes me days hand making simple stuff. What can be done in minutes on a machine.

Great build! What about the cadence? Does the motor determine the cadence? Or does it adapt to your cadence?

Try a 60v battery

What part did you use for the freewheel gear? I'm having a hard time find a similar part for my diy ebike.

Awesome build! How much did the cnc components of the bike cost?

did you try tsdz2 motor ? did you made double freewheel crankset ? and is it possible to add some torque sensing to this?

Grande, bel video. Ma di dove sei? Sembrano posti vicini ai miei:)

How much does it weigh?

This bike was really easy to assemble ru-vid.comUgkxMesz3KOGEmwmvyKQfLfrRSUXLFzfVHZA and required very few adjustments out of the box. The wheels did not require any truing/adjustments. The frame had some small scratches, but nothing major.I did replace the seat though - the seat it came with was very uncomfortable. The tires need to be re-inflated every 4-5 days, but this appears to be quite common for the narrow 700x25 tires.Overall, in my opinion, this bike looks and rides like a much more expensive bike.

you are genius can you share this 3d model?

How much does this cost to create in parts and fabrication?

Man I cannot find you on IG 😢 can you send me the link? I’m so interested about the details of the project.

dude, can you make and sell these???

What's the keyword for that tooth sproket?

Stai per mandare in rovina la bike industry mondiale 😂

Whats the total gear reduction?

Please go commercial 🙏🙏🙏 I want one as well

Put it into production bro it will soon put all the over priced ebikes out of business

Sell it!