There are 3 different ways to mount the motor when converting your bike into an E-Bike:
- Front-wheel (hub motor)
- Rear-wheel (hub motor)
- Bottom bracket - in the "middle" (mid-motor, mid-drive motor)
Compared to the hub motor, the mid-drive motor doesn´t transmit the power directly to the wheel, but to the bicycle chain. This means, your rear bicycle gears can also be used with a motor assist, which is not only an advantage when riding uphill. Further advantages are ideal weight distribution, low center of gravity, and a very natural riding experience. Furthermore, the front and rear wheels can still be changed without any problems.
Bafang BBS motor function is very simple: The electric motor powers the front chainring with an internal gear ratio of 22:1. An integrated clutch makes it possible, that the crank arms won´t be moved while the chainring rotates forward.
| 1 | Motor housing | 12 | Screws |
| 2 | Stator | 13 | Triangle mounting plate |
| 3 | Rotor | 14 | Mounting screws |
| 4 | Controller | 15 | First (inner) lockring |
| 5 | Housing cover, PAS disc, clutch | 16 | Second (outer) lockring |
| 6 | Gasket stator side | 17 | Chainring |
| 7 | Gasket controller side | 18 | Chainring screws |
| 8 | Gasket drive side | 19 | Left crank (L) |
| 9 | Bolt for adjustment | 20 | Right crank (R) |
| 10 | Allen screws | 21 | Crank arm bolts |
| 11 | Bolt |
This conversion kit contains the following components:
- 48V750W motor with all necessary cables and fixing parts
- Speed sensor
- Original cranks from Bafang
- Original 46T chainring from Bafang( many options)
- Color display(Optional)
- Original thumb throttle from Bafang
- Bottle mount battery (many options)
- Charger 2A(3A optional)
Gift: Mounting tool
And the accessories you may need:
