Motor:250w/350w BB:68mm,100mm for choosing 1×Mid motor 1×C965/C961 display 1×Thumb throttle 1×Speed sensor 1×Chain wheel 2×Crank 2×Brake levers Warranty is 2 years for motor, and half year for parts.
BAFANG BBS(MM G31) Mid Motor Kit
With an integrated speed sensor, this BBS(MM G31) mid-drive motor, which is compatible with standard bikes, has a rated power of 250W,350W and 500W, a reduction ratio of 1: 21.9 and a maximum torque of 80 N.m, providing ideal power for vehicles. This BBS(MM G31) mid motor need your bicycle bottom bracket is 68mm or 100mm.Light but strong and efficient, this BBS mid motor greatly enhances riding comfort and is suitable for touring bikes and commuter bikes. This BBS(MM G31) mid motor is black.
The advantage of bafang mid drive motor kit:
1.This kits can be installed on standard normal bike frame easily,no need to change the frame. 2.High starting torque, Max torque≥80N,good performance on climbing. 3.Double clutch is used on drive unit,more safety. 4.High efficiency, low consumption,long travel distance.