You need with a Electrci bike first

Function: Electric bike riding through the foot pedal rotation speed (and, like cycling), the controller will automatically detect your riding speed, thereby sending a signal intensity ranging from work to the motor. Motor will work interval to achieve the purpose of the foot control speed, so riding hearted .1 + 1 booster system takes full advantage of the inertia and supplemented by motor power the vehicle forward, to achieve both effort and energy saving. As well as, reduce the burden on the battery, reducing battery output current.  Effectively extending the distance mileage and battery life. It employs speed manual first, when you release the manual control, foot control 1 + 1 booster will work. Continued riding with help to extend the mileage of more than 30%-50%.

Our PAS with 12 Magnets almost only with 5 Mangnets please compare it. 

(just a sample) It can use any kind electric bike.

How to assemble:

• Line Description:

Red = + 5 V power supply

Black = ground

Green = signal line

• Installation instructions:

1: 1 booster pedal shaft is loaded, played the role of booster

Please check the assemble done picture up 

Any problem please contact with us.