RockShox Charger 3.1 RC2 Damper Piston Upgrade Kit Description: This RockShox Charger 3.1 RC2 Damper Upgrade Kit allows users to upgrade existing Charger 3 dampers to the updated Charger 3.1 interface. Charger 3.1 RC2 brings an increased damping range, priming it to take on any trail. Less compression damping in the Low Speed Compression open position and additional support in the High Speed Compression closed position give the traction, control, and comfort you need to charge dicey lines all day. Note: Includes head valve and shim kit (not complete damper) Features: Charger 3.1 RC2 damper offers a broader adjustment range than its predecessors Includes full right-side internals including controls High Speed Compression, Low Speed Compression, and Low Speed Rebound adjustments Includes vibration-fighting ButterCups to block 20% of trail chatter Specifications: Model Compatibility: BOXXER D1 (2024-2026) | FS-BXR-ULT-D1, LYRIK D1-D2 (2023-2026) | FS-LYRK-ULT-D1, PIKE C1+(2023+) | FS-PIKE-ULT-C1, ZEB A1-A3(2021-2026) | FS-ZEB-ULT-A2