200 Hour Service Kit for the repair and maintenance of RockShox forks. Performing yearly maintenance on your and RockShox products not only ensures years of worry-free riding, but will also keep performance optimal and enhance your experience on the bike. RockShox recommended 200hr/1 Year service kit for SID (35mm) Base / Select / Select+ / Ultimate (2024+) Generation-D suspension forks. Compatible with RockShox FS-SID-SEL2-D1, FS-SID-SEL3-D1, FS-SID-UFA-D1, FS-SID-ULT2-D1, FS-SID-ULT3-D1.