1. High universality: Applicable to brush / brushless controller, high / low/ sensor/ sensorless motor- electrical system, 24V/36V power system;

2. Facility to install: Install as the normal chain wheel crank in bicycles, apply to ordinary bicycle D-type B. B. parts.

3. Three levels power adjusting function: It has three assistant power levels and the battery will be displayed on a dashboard.

 4. Riding on comfortably: Large linear torque range with great stability and you will feel more soft when the gear changes.

5. Well acclimatization: it has excellent anti-jamming ability that can work as normal in dirty water.

6. Speed limitation: it can set a maximum speed transmission ratio (such as: 25 km / h power cut)

1. the torque intelligent sensor can make the rider and the bicycles the one , it could assistant as the rider' s need, and adjustor itself according the condition of the road , especially when climbing .
2. when climning, the assistant system will provide powerful force and make the climb like on the flat, whatever the gradient.
3. prolong battery life-span: half of the output power can avoid the damage of the high-power output bring on the battery, also it can reduce the power automatically when the speed is increasing , at the same time , the mileage can be increased twice or  more.
4. good security: the system can turn off the power at once(within 2ms)after pedaling, the e-bicycle move on and slide just by the right of inertia, so the rider can control the e[bicycle like the bicycle.