Shock Absorber Type 641 Competition Preload Adjuster:Hydraulic Preload Adjuster (Wilbers-PA) (+$505) If your fork’s adjustment range

If your fork’s adjustment range cannot achieve the desired damping characteristics

12mm hard-chrome shaft

Many owners of classic sports cars seek perfection without compromise

which Wilbers replaces with progressive fork springs

so the Wilbers shock is designed a bit longer while maintaining the original seat height for better ride balance

Shock Absorber Type 641 Competition Preload Adjuster:Hydraulic Preload Adjuster (Wilbers-PA) (+$505) If your fork’s adjustment rangeThis 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