The RockShox 2-position Charger Race Day 2 damper-every detail perfected, every extra ounce shaved away; this is their lightest performance-driven damper ever. Light. Speed. Performance. Podium. This 2P damper features two compression positions: Open or a rock-solid Lock.Includes complete right side damper internals for an easy upgrade30mm (60mm Max Travel)Compatible with RockShox RUDY XL model: FS-RDYX-ULT-A1 suspension forkIncludes complete right side damper internals for an easy upgradeCompatible with previous Rudy models30mm (40mm Max Travel) RockShox Charger Race Day 2 Damper 2P Upgrade Kit Damper, Compression UPC: 710845923999