1. Check whether the product provides a 2-3 inch lift requirement. Some products only provide a 2-inch lift. If you barely use a 3-inch lift, it is easy to pull it to the limit and cause damage in off-road.
2. Whether the diameter of the central telescopic rod of the shock absorber can reach more than 16 mm, which is a basic indicator of strength.
3. Whether the upper and lower connecting sleeves of the shock absorber are high-strength polyurethane sleeves, this is also an important basis for ensuring long-term high-intensity use, because ordinary rubber is difficult to use for a long time under high strength.
The shock absorber is mainly used to suppress the shock when the spring rebounds after shock absorption and the impact from the road. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump. If the shock absorber is too soft, the car body will jump up and down, and if the shock absorber is too hard, it will bring too much resistance, hindering the normal operation of the spring. Shi Xiaohui said that in the process of modifying the suspension system, hard shock absorbers should be matched with hard springs, and the hardness of the spring is closely related to the weight of the car, so heavier cars generally use harder shock absorbers. When modifying a car, you need to keep trying to design the best combination of shock absorbers and springs. Professional modification shops can generally find the best combination for car owners.