For the models equipped with quick release device, it is adjusted by the adjusting screw opposite the quick release handle and finally fixed by bending the handle upward. If the handle is loose or locked too tightly, adjust the tightness by turning the screw. Please refer to manual (P9 to P10) for the regular inspection of the quick release tension of the wheel area.

The auxiliary brake is only used for auxiliary purpose, and the braking effect will not be as good as the official brake, so please use it after understanding correctly. Please refer to manual P36 for the brake adjustment method.

We will debug the shifting effect before shipment, but the stretching and vibration in transit will cause the shifting cable to loosen. Or after using for a period of time.The transmission cable will be loosened physically after a period of use, this time the user needs to debug  once again, it is  a normal phennomenon, please refer to manual (P28 ~ P34).

Regularly check whether the foot pedal locking part if it is loose, and solve the problem by locking it again, please refer to manual P20.

Add lubricating oil to the rotating part, which can effectively improve the rotation problem. The stand will fall freely during the ride, most likely caused by the loosening of the fixing spring, which can be solved by replacing the spring.