RockShox Damper Upgrade Kit – Charger Race Day 2 / 2-Postion 30mm (40mm Max Travel) RUDY (A1+/2022+). The RockShox 2-position Charger Race Day 2 damperevery 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.