Rocker, also known as bell crank or linkage, is the lever that translates the push\pull rods motion into the rotary force on the torsion bar and the up\down motion of the damper. The rocker also has mounts for antiroll bars and sensors for wheel travel. The ratio of the rocker is the lever it has on the damper, i.e. 1 centimeter of wheel movement translates to 2.5 centimeters of damper movement. Generally damper movements are larger than wheel movements; hence the distance form the damper mount to the centre of the rocker is longer than the one connection the pushrod. This ratio can be changed and depend if the circuit. To change ratio is necessary to change complete rocker.