1. Comprehensively improve driving stability, enhance driving comfort and enjoy driving pleasure;
2. Ability to weaken body vibrations and absorb the noise of the suspension system;
3. Solve the problem of spring weakness, improve the body by 0.2-0.3 cm, but it can not effectively improve the carrying capacity;
4. Limited cushioning and absorption of instantaneous pressure caused by rough roads to avoid damage to the damping system (Warning: Exceeding the limit will damage the damping system).