AW 26"x1.75" Rear Wheel 36V 800W 350RPM Electric Bicycle Motor Kit PAS System Cycling Hub Conversion Kit Pedal Assistance System (PAS): let you enjoy cycling while driving electric bike Dual Mode Controller: Motor works under Hall effect and non-Hall effect, extend life for electric bike Provides you with a whole wheel with tire, not just the tire frame Drive system has no moving chains or gears, no friction, more efficient, less chance to break! Brake shuts off motor automatically, saves energy, improves safety! New design of waterproof connection,more convenient and stable for Installing or maintaining