Torsion Bar

Also known as a torsion spring, the torsion bar is a long metal element in a vehicle suspension system. It is the main weight-bearing spring whose one end is attached firmly to the vehicle's chassis while the other end terminates in a lever.

The torsion bar suspension offers a smooth ride experience due to the elasticity and durability of the bar. If there is rust present on the torsion bar, you should replace it timely.