The wheels of a car are made of tires and wheels as a whole. But by the manufacturing reasons, so that the overall distribution of the various parts of the quality can not be very uniform. When the car wheel high-speed rotation, it will form a dynamic imbalance, causing the vehicle in the running wheel jitter, steering wheel vibration phenomenon.

In order to avoid this phenomenon or to eliminate this phenomenon has occurred, it is necessary to make the wheels in the dynamic situation by increasing the weight of the method, so that the wheel to adjust the balance of the edge. The process of correction is that people often say that the dynamic balance.