Jiade aluminum swing arm said that the advantages of aluminum alloy suspension are as follows: 1. Better grip: aluminum suspension can reduce the unsprung mass so as to improve the response speed of the shock absorber. The response speed of the shock absorber can improve the ground adhesion performance of the wheel, which will lead to better ground adhesion of the wheel. 2. Low cost: the suspension arm of many high-end cars is made of aluminum alloy. The cost is higher, and the requirements for technology and processing equipment are higher. Many cars that pay attention to sports and control will also use aluminum suspension. The suspension of f1 racing cars will use carbon fiber to make carbon fiber with high strength and light weight, but carbon fiber is also very expensive.