[Image of a Peugeot 106 rear torsion bar suspension]
The torsion bar suspension consists of a solid metal bar (the torsion bar) that is attached to the chassis at one end and to the axle at the other end. When the axle moves up or down, the torsion bar twists, which causes the springs to compress or expand. This stores energy that is released when the axle returns to its original position.
The torsion bar suspension is a relatively simple and inexpensive design that provides a good compromise between ride comfort and handling.
