... High efficiency. 4.Geared drive system Brief Keyword: Electric Bicycle KIT, Electric Bike KIT, Motor KIT. MAC offers a range of Ebike kits ... stator to optimize the motor speed and power to meet the requirements such as Wheel Size (typically 16” to 700C), Max ... 44Gear Ratio5:15:1Usage Front Hub motor for electric bicycle,golf cart,ATV etc.Rear Hub motor for electric bicycle,golf cart,ATV etc.Features1. ...