1. The structure between the single point suspension and the trailer is simple in installation, low in manufacturing cost and easy in maintenance.
2. When the left and right wheels bounce, they will be involved with each other, and the change of tire angle is small, so that the tire wear is small.
3. It is not easy to change the angle of the wheels when the height of the car body is reduced, so that the feeling of handling is consistent.
4. It takes up less space and can reduce the height of the car floor.
