WRC F-One adjustable friction roll damper

Italian company WRC have introduced a new adjustable roll damper for the F-One formula car. The design revolves around the inner piston that can be equipped with one to three rubber O-rings in order to adjust the friction of the damper with the single O-ring offering the least and the triple O-ring specification offering the most friction. Additional fine-tuning is possible by using highly viscous oils or greases. The damper not only fits the F-One but many other formula cars with a single roll damper.

Source: WRC [wrc-racing.com]