The GP4 is a versatile damper for trails (road, track, rally ...).
It is a twin-tube high-pressured and easily adjustable gas shock absorber, comfort and stability are enhanced.
Indeed, thanks to the twin-tube technology, rebound settings (high and low speed) do not influence the compression settings (high and low speed). So there is less trade-off in the settings. The settings have 26 clicks.
Chassis height is adjusted with the spring preload by a nut against nut system.
This option replaces the traditional method of spring setting by a hydraulic system. A thumb setting wheel taken up on the frame, or in certain cases directly on the shock absorber, the control the prestressed of the spring. This way of setting is very useful on a motorcycle of tourism to pass of a state of load in an other one as well as in competition to save time of development during the tries and in race during pitstops.