Motor power battery operated bicycles are the main part of the drive,

which is the heart of electric bicycles. Direct impact on the performance of the motor electric bike. Domestic electric bicycle motors are mainly used for brush motors and brushless motors in two ways: a brush motor current is greater when the electric bike and start climbing, electric scooters performance is weak, the current general manufacturers rarely been used. Meanwhile brush motors have high and low points. Brush speed motor (3600 rpm / minute) using brushless motor power as two contacts, using to the governor and controller to control, battery operated tricycle through a gear reducer and secondary clutch to achieve 0-20 km bike / hour stepless. Currently brushless motor electric bike manufacturers are generally used in brushless gearless motor. Brushless DC motor by detecting a rotor position of the Hall element, then the controller processing the information from the Hall element to control the rotation of the motor, the controller may also generate a pulse width signal for controlling the motor speed. From the control principle is said brushless DC motor closed-loop control. Brush motor to maintain contact with the rotor by turning the brush, which is an open ring. So brushless more suitable Flyhorse battery powered bikes. Greater advantage brushless motor, brushless electronically commutated motors replace mechanical commutation, technically superior to brush motor. While the brushless motor without gear reduction device, or to reduce the wear of the motor is not reliable. Its efficiency within a certain range than current high brush motor efficiency. Brushless motor driving up almost no noise, and long life of more than 10 years. Of course, the price is relatively high brushless motor itself, and the controller is more complex, the cost should be higher. But for now, and compared to brush motors, brushless motors will become more and more mainstream.