The motor is a component that converts the battery electric energy into mechanical energy and drives the electric wheel to rotate. There are many kinds of motors used in electric vehicles in terms of mechanical structure, speed range and power-on form. Common ones include: brushless toothless hub motor, brushless toothless hub motor, brushless toothless hub motor, brushless toothless hub motor, high disk motor, side-hung motor, etc.

Electric bicycle refers to a vehicle that uses battery as auxiliary energy and is equipped with motor, controller, battery, handle and other control parts and display instrument system on the basis of ordinary bicycle.