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