RockShox: When When the engineering superpowers of Trek and RockShox combine, the results are anything but ordinary. Completely reimagined, the Super Deluxe Ultimate ThruShaft was created with a go anywhere, ride anything attitude. The ideal match for the next generation of hard hitting all-mountain enduro bikes.FEATURESTrek's exclusive ThruShaft design responds to changes in terrain faster than any other shock on the marketVersatility is key for a go anywhere, do anything attitude. Dial it in with redesigned Low Speed Compression adjustment offering three options to find your perfect match to seize the day.Featuring an oversized thermal compensator for greater temperature stability and consistent suspension feel on those extra long, extra demanding descents.Time to adjust. With a “fully checked” damper, your compression settings work independently, not to be bothered by each click of Rebound.Setting up your Rebound made simple with numerically indicated adjustments to eliminate the number crunching.Shock controls optimized for frame integration and rider ergonomicsAvailable in Trek Specific Trunnion ThruShaft 230x57.5 and 230x62.5 configurations.MegNeg air can is not compatible with MY21 Super Deluxe Ultimate ThruShaft.Only compatible with purple tokens for positive and negative air spring tuning SPECIFICATIONSEye to eye / Stroke: 230x57.5Air volume: n/aRemote: n/aHose length/Cable Exit: n/aModel designator (SR): Thru:AktivDamper Type: RCTRebound tune: MCompression tune: MPedal tune: n/aLockout force: 380Color (Shock body): BlackColor (Decal): BlackDecal orientation: AShaft Eyelet: TrunnionBody Eyelet: YokeDamping adjustments: Extl rebnd, 2 pos (open/firm) w/ compression adjustVolume reducer: n/aCheck Tune: STD