Replacement seal, bushing, o-ring, and bottom-out/negative-bumper kits for servicing RockShox rear shocks (pre 2008 oil-damper units are non-serviceable)Convert standard DU Bushings to Bearings on 8x30 frames, uses 22mm wrench- Compatible with: RS-DLX-NUDE-C1, RS-DLX-SCTT-C1, RS-DLX-ULT-C1, RS-DLX-ULT-C2, RS-SDLX-THRU-C1, RS-SDLX-UFA-C2, RS-SDLX-UFA-D1, RS-SDLX-ULDH-C1, RS-SDLX-ULT-C1, RS-SDLX-ULT-C2, RS-SDLX-ULT-D1, RS-SIDL-STFA-A2, RS-SIDL-STFA-A3, RS-SIDL-UFA-A2, RS-SIDL-UFA-A3, RS-SIDL-ULT-A1, RS-SIDL-ULT2-A2, RS-SIDL-ULT3-A2