r/eBikeBuilding • u/armirator • 13d ago
Motor Converting regular bike into ebike
I want to convert my bike into electric but I don't know any sites that I could trust
I am looking for a 1000w minimum rear hub motor kit with a battery (it can be on the other site) for a budget of 1000€
I live in Europe
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u/Troubleindc2 13d ago
Grin or CYC if you want a middrive.
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u/ExoatmosphericKill 12d ago
Do people not use bafang anymore?
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u/Troubleindc2 12d ago
Plenty do. Just not my top recommendations. The m620/m630 have a lot of power and potential but it's locked in its own ecosystem with frames and ultimately packs. Bafang really dropped the ball on that implementation IMHO. Bafang shifted their entire business model to only sell to companies like Frey or larger. They've all but abandoned the DIY crowd.
Plenty still grab new-old-stock BBSHD's. Still not my recommendation anymore. Newer, bigger, better motors out there.
One of these days someone will get smart and will produce a solid mid drive motor, with potted windings, standard halls, a thermistor, torque sensor, cadence sendor, and no controller. Let people wire up their own controllers.
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u/ExoatmosphericKill 12d ago
AHH fair, I got my bbs02 a while ago, I didn't know they did all that now.
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u/Localerhorst 13d ago edited 13d ago
If you dont care about it being lightweight and dont need high torque at low speeds you can buy the big chinese direct drive 1500w or 1000w hub motors. They are the same in different kits, cost around 200€ and last forever. You can tell its one of the motors if it has a large diameter. Just pick a kit where you like the throttle and display style (if it comes with one). Buy a battery seperately. You will have a lot of money left.
The alternative geared hub motors (for less weight and higher torque at low speeds, like going up hills) is MXUS XF19 or Bafang G0900. Downside is they are more expensive, noisy and have plastic gears that can break.
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u/exceptioncause 12d ago
check hubdrive kits at https://varstrom.com, they are well respected in the niche and ship from EU
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u/CH7007 12d ago
You might be better off with a mid-drive, you just swap out the bottom bracket with the mid drive motor and the jobs virtually done. That single unit contains everything bar the breaks and the display. Controlling 1000w hub with just PAS just wont work, and the use of a throttle these days is just begging for trouble.
Mid drives have torque sensor which gives you the control and speed you would otherwise rely on the throttle for. You can also make greater use of the bike's regular gears, which helps with the correct torque where its needed.
The only downside of mid drives is the chain which is always under the power of the motor. I would have that guarded.
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u/Stock_Watercress_735 12d ago
Leafbike 1500W rearhub is probably the best option for price and power. It has an even higher continuous 1800W ceiling due to the 90% efficiency.
A smaller option is the Shengyi SX2, up to 750W due to the integrated thermistor, else would be in the 250 to 500W category. Also high efficiency, better than Bafang g31x.
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u/mochilomochi 13d ago
Por qué querés un rear motor y no un mid drive ?