The load-bearing capacity of the leaf spring is relatively good, especially when this kind of suspension is fixed with multiple steel plates through U-shaped bolts, and connected to the frame beam at both ends. This kind of suspension can adapt to the needs of different load-bearing tasks by increasing the number, thickness and width of steel plates, and the degree of bending can also be adjusted according to the height of the vehicle. Because the leaf spring has a simple structure and a strong bearing capacity, it is very suitable for use in high-strength off-road or load-bearing situations. In addition, it leaves enough jump travel for the wheels and maximum ride comfort. Also, since they can be attached directly to the frame, the suspension requires a lot less lateral space, leaving more room for the tank underneath. Their benefits are also reflected in the fact that although they all have good load-bearing capacity and fairly reliable strength, if they break during the journey, they can be replaced quickly, and the vehicle will not be affected by suspension problems to continue driving.