We started research on friction boost in 2014 and developed the booster that is clutched by inertia force and annular structure.

We have developed a relatively stable booster with mechanical structure (the right picture shows the QIROLL Q-1 booster)
The reaction force is controlled by various electronic and mechanical methods to make it operate stably.
It has also been found that this frequent separation and combined operational mechanism can cause many problems.

1. Frequent actions do not guarantee success every time.
2. The combination of the moment is very harmful to the tire.
3. The combination time is quite long, about 1-2 seconds, affecting the continuity of operation.
4. Installation is very troublesome and it can’t run normally without being installed correctly.

Return to the essence

Why does it need to move frequently?
The motor generates resistance when it is not energized. Separate the tire so that the motor can not produce resistance.
When it does not work, the action is meaningless.
Just consume a very small amount of electricity to achieve this effect, why not try?


Electronic Clutch Technology

Electronic clutch appearance is very common.

The booster controls the running state of the motor and the tire, and does not generate resistance in non-powered cycling.
This is achieved by consuming very little power.

Gain the following advantages
1. Very quick start (0.1 seconds)
2. There is no contact moment, no damage to the tire
3. Installation is very convenient, and there is no requirement for bicycle frame
4. Greater power output


The QR series booster retains the traditional mechanical separation structure based on the operation of the electronic clutch.
The adhesion of the booster to the tire can be easily separated without complete power or other needs.