1High Performance Motor Kit: Powerful high speed motor kit, the working voltage is DC24V and the rated power is 250W, rotor precise balancing, dependable to use. 2Application: Electric motor controller kit can be widely used in motorized bicycle, moped, mini bikes, pocket bikes and electric dirt bikes, scooters, electric bike, Atv and so on. 3Advantage: Electric high speed Dc motor adopts aluminum alloy material, high temperature resistant, high strength, good heat dissipation, more durable. 4Package Contents: The package includes 1pc electric motor, 1pc controller, 1pc handle grip, 1pc, electric lock, 2pcs electric lock keys, 1pc 146L chain, 1pc 55 teeth chainring. 5Easy to Operate: The electric Dc motor controller adopts simple design, simple operation, stable performance, convenient and safe to use.