Specifications of Middle Drive Motor Kit for Mountain Bike Bicycle:
The speed can reach 40-50KM.
Features: 1:23 super high speed ratio;
95MM super large rotor; large torque;
Fine workmanship: aviation aluminum profile, surface anodizing;
Simple installation; Easy to use, Stable maintenance-free;
Climbing ability bigger than 40°
Vehical Type: 12-26 inch, BB( Five-way): 68-73mm universal use
Voltage: 36V/48V/60V
Power: 250W/350W/500W
If Need, Please Contact With Us for More Details At present, the 48V 500W and 250W 36V have stock,for other rating ,please contact with us before place order.
Photos of Middle Drive Motor Kit for Mountain Bike Bicycle: