RockShox

Ultimate RCT Trunnion Rear Shock - 165x40mm C2

The RockShox Deluxe Ultimate RCT Trunnion Rear Shock – 165x40mm C2 delivers everything a rider expects from a top-tier inline shock—precise control, lightweight efficiency, and a feel that stays consistent no matter how rowdy the terrain gets. Designed around the updated DebonAir+ Linear XL air spring, this shock offers a smoother, more predictable stroke with tuning range to satisfy both aggressive descenders and all-day trail riders. Whether fine-tuning compression for efficiency or opening it up for plush travel, the Deluxe Ultimate RCT keeps every ride dialed.

With independent Low Speed Compression and Low Speed Rebound adjustments, riders can perfectly match the shock’s behavior to their bike and terrain. The Maxima Plush damping fluid ensures friction stays low and noise stays quiet, while the refined bottom-out system keeps big hits controlled and composed. E-bike approved and built for riders who demand premium performance, this shock transforms every descent into a confident, controlled experience.

Key Features:

• DebonAir+ Linear XL air can – expanded tuning range in a compact, lightweight package.
• Independent Low Speed Compression and Rebound adjustments – precise control over efficiency and comfort.
• Bottom-out control system – smooths out heavy impacts while keeping noise to a minimum.
• Maxima Plush damping fluid – reduces friction and delivers ultra-quiet performance.
• E-bike approved – built strong enough for added torque and weight demands.
• Open-to-Firm lever – quick, on-the-fly adjustment for varied trail conditions.

Default Settings

• 4 Neg/0 Pos Tokens,
• Reb55/Comp30
• Lockout 4
• Linear XL