200 Hour Service Kit for the repair and maintenance of RockShox forks. Performing yearly maintenance on your SRAM and RockShox products not only ensures years of worry-free riding, but will also keep performance optimal and enhance your experience on the bike.200 Hour/1 Year Service Kit (Includes Dust Seals, Foam Rings, O-Ring Seals, Sealheads) - Sid Sl (32mm) Base/Select/Select+/Ultimate (2021-2023) Generation-CSRAM Model ID: FS-SVC-200H-A1