Shock Absorber Type 631 Competition Preload Adjuster:Hydraulic Preload Adjuster (Wilbers-PA) (+$505) Heavy-Duty MX Internals: Features a

Heavy-Duty MX Internals: Features a rugged 12mm hard-chrome shaft and a 36mm piston engineered to withstand the extreme forces of off-road riding

By pairing a heavy-duty 36mm radial piston with a robust 12mm hard-chrome shaft

repeatable adjustments

This innovative valve transforms conventional damping systems into a more sophisticated

Shock Absorber Type 631 Competition Preload Adjuster:Hydraulic Preload Adjuster (Wilbers-PA) (+$505) Heavy-Duty MX Internals: Features aWith compression tank on a flexible steel hose. The Wilbers Adjustline shock absorber Type 631 is ideal for motorcycles with limited space. The compression reservoir connects to the shock absorber via a flexible steel hose hose length and mounting angles can be chosen individually so the reservoir always finds its optimal position, for example on the rear frame where airflow provides additional cooling. The compression tank houses the screws for