Xray XB808 improved shock membranes
Xray have released these newly designed improved shock membranes, that provide more consistent feel during long finals with no sign of fade. For XB808 shocks, they are made of soft molded rubber and are wider to fit the big-bore shocks. The material has been also improved to guarantee the same damping characteristics from the beginning of the race to the end even after excessive loads. Sold in a set of 4.
Source: Xray [teamxray.com]