2, the car swing arm is the frame and wheel connection mechanism. The frame and wheel of the bicycle are hard links, which can be very bumpy and uncomfortable when crossing the rough road. The swing arm of the car is made into a soft connection, and the damping mechanism is added, so that we can sit on the uneven road in the car without too much discomfort. Meanwhile, the handling stability of the car is much better.
This article by the east tiger chassis accessories co., LTD. Arrangement