Shock Absorber Type 642 Competition PD Valve preventing oil foaming (aeration) and

preventing oil foaming (aeration) and giving you consistent

maintaining the same seat height as the original suspension

rebound and spring preload

This upgrade delivers a much more responsive initial reaction and greater reserve in the second

Shock Absorber Type 642 Competition PD Valve preventing oil foaming (aeration) andThe 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