Ohlins air damper service kits provide the necessary parts to keep your rear shock performing at their intended high level.Damper service kit for the Ohlins TTX Air rear shockReplaces the single-piece damper seal head, as well as the fill screw, pin for the HSC adjuster, and the wave washer for the HSC adjusterSingle-piece seal head for ease of installationIMPORTANT: Must have a vacuum fil machine and Ohlins nitrogen fill needle assembly (Intended to be used by authorized service centers) Ohlins Rear Shock Damper Service Kits Rear Shock Service Kits UPC: 840153640452