... Electric Bike conversion kit usually includes an electric hub motor,a motor controller,throttle and brake lever,battery and charger is optional.The ... : 1. A 48v 1000w whole electric bicycle wheel. ( brushless motor, 12G spokes, double-wall alloy rim) Wheel size: 16"20 ... choosing. 2. A 48v 1000w smart controller. basic functions: speed control , brake to cut off motor power, battery power indicator, 1+1 ...