Shock Absorber Type 643 Competition PSSwiveling compression reservoir, rear facing (180). For motorcycles with tight packaging, the reservoir pivots 180 to the rear to create more installation freedom. The high and low speed compression adjusters are integrated directly into the milled upper mount, each with 22 precise clicks. A pressure relief valve prevents hydraulic lock under maximum load, eliminating suspension turbulence from sudden impacts. Rebound is tuned externally via an open