Hub Motor, Motor Controller, Electric Motorcycle manufacturer / supplier in China, offering Three Generations with Three Gears, 36V48V60V72V Variable Speed Control Throttle Handle for Electric Motorcycle, Universal Electric Bicycle Grips Throttle for Electric Bike Tricyle Twist Throttle Accelerator with Forward and Reverse Function, Wholesale 24V 36V 48V 60V 72V Scooter Ebike E-Motorcycle Electric Throttle Grip Handlebar and so on.