Creates an innovative pedal assisted system for bike. It is totally different from the traditional design like hub motor. We got patent from a lot of countries. When we install the pedal assisted system to bike, you can ride a bike easily and smoothly. You will find that you have a lot of fun when riding such a bike. Why do we say that？The reason is that you can ride this bike to climb a hill easily and you also can ride it for a long distance. Our system can be installed to different types of bike. Of course, it is necessary to have more consideration when installed to different bike. If you are interested in our system, we are glad to have more discussion with you. Welcome to give us a call or mail. We will give you an immediately response and service.