SURINGMAX torque sensor electric bike 36v 250w ebike mid drive motor conversion kit for e-bike

Suitable for 68mm and 73mm BB Tube

Features:

 Easy installation, applicable for most normal bicycles 

 Max Torque about 80N.m, strong ramp-climbing capability 

 Internal controller + axial torque sensor (real two-side torque) 

 Compact size and elegant shape, weight about 3.6kg 

 Comfortable ride, high efficiency, less battery consumption and longer range 

 Safe, reliable and excellent performance