Shock Absorber Type 642 Competition Preload Adjuster:Hydraulic Preload Adjuster (Wilbers-PA) (+$505) and bottoming resistance to match

and bottoming resistance to match shifting track conditions

redefining what you can expect from your motorcycle's performance

the vehicle exhibits excessive damping in the fork but insufficient damping in the rear shock absorber

The negative spring deflections are slightly too low in the stock configuration

Delivers the same controlled damping and comfort with model-specific fitment

Shock Absorber Type 642 Competition Preload Adjuster:Hydraulic Preload Adjuster (Wilbers-PA) (+$505) and bottoming resistance to matchThe ultimate in motorcycle shock absorbers: the upper mount is a precision milled component that connects to the compression reservoir and houses the high and low speed compression adjusters. With 22 clicks each, they can be dialed precisely to your needs. A pressure relief valve prevents hydraulic lock at maximum compression speed and mitigates uncontrolled jolts. Rebound is externally adjustable in 22 clicks, and spring preload is steplessly