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stabilizes the bike under heavy load changes
Optional Upgrades: Available with a Hydraulic Preload Adjuster (HPA) knob on select adventure and touring fitments
achieving optimal negative spring deflection while maintaining the original seat height
Fork shortening can be performed by a BMW workshop
Including a progressive spring and 16 mm damping rod
Shock Absorber Type 643 Competition PS Lift/Lowering:Std stabilizes the bike under heavySwiveling 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
