In this type of suspension, a coil spring is attached to the trailing link which itself is attached to the shaft carrying the wheel hub. When the wheel moves up and down, it winds and unwinds the spring. A torsion bar has also been used in certain designs in place of the coil spring.

This system does maintain the camber and the wheel track constant. However the distance between the front and the rear wheels does change. Difficulty to remedy this defect is the main reason for its very limited use in actual practice. Moreover, it takes up a lot of space.