Shock Absorber Type 641 Competition Preload Adjuster:Hydraulic Preload Adjuster (Wilbers-PA) (+$505) ZF by Wilbers 46R —

ZF by Wilbers 46R — open-cartridge road fork

– 1–2 liters of SAE 5 fork oil

A pressure-control valve prevents hydraulic blocking and tames sudden impacts

by shortening the shock absorber slightly

Damping Control: Velocity-sensitive compression damping adjustment via internal valve spring tuning

Shock Absorber Type 641 Competition Preload Adjuster:Hydraulic Preload Adjuster (Wilbers-PA) (+$505) ZF by Wilbers 46R —This shock absorber connects its compression tank to the main body using a flexible steel hose, making it an ideal choice for motorcycles with limited installation space. The hose can be routed freely wherever space allows for instance, along the rear frame where airflow can also aid in additional cooling. The external adjustment screws for high and low speed compression, each adjustable in 22 clicks, are easily accessible. Rebound damping can be fine