Adjustable rebound damping

Damping is usually set with the knobs that have a normal right hand thread though struts may have an allen socket for adjustment. By turning them clockwise the damping action is increased, and by turning them counter clockwise it is reduced. The knobs have definite positions with noticeable "clicks", making it easy to count to the right setting.

Rebound damping action is usually used to affect the characteristics of a motorcycle and used sparingly on race cars. The setting knob is located at the bottom on the piston rod (Fig. to the right). It can be adjusted in about 40 steps.