RockShox

Vivid Ultimate DH RC2 Rear Shock - D1

RockShox Vivid Ultimate DH RC2 Rear Shock - D1 is a modern downhill rear shock built for riders who want repeatable setup, strong mid-stroke support, and controlled end-stroke behavior on aggressive DH bikes. The LinearXL air spring targets a predictable, coil-like spring curve while keeping the tunability and service convenience of an air shock, and the RC2 damper adds clear, usable adjustment ranges for dialing traction and support across varying tracks, speeds, and rider weights.

Key tuning advantages for DH performance

1. LinearXL air spring + bottomless token tuning - Delivers a consistent, predictable feel and lets riders adjust progression with easy-to-change tokens for better match to bike kinematics and riding style
2. RC2 damper with independent HSC/LSC - Wide, usable High Speed Compression and Low Speed Compression adjustment range designed to reduce “cross-talk,” making it easier to tune support without sacrificing traction
3. Adjustable Bottom Out (ABO) - Five-position control targets the last 20% of travel, helping riders add end-stroke cushioning for hard impacts and steep landings without over-firming the entire stroke
4. 20-click rebound adjustment - Broad range and uniform rebound curves help maintain a consistent ride feel across a wide spectrum of rider weights and spring pressures
5. Updated compression piston tuning - Main piston compression tunes are matched in performance intent to the Charger 3.2 damper approach, emphasizing usable mid-stroke support for pumping and holding lines at speed
6. Lower IFP forces + higher max PSI capability - New base valve design claims a 40% reduction in IFP forces for improved small-bump sensitivity, and increased max PSI supports higher system weights when needed

Setup details are designed to stay rider-friendly: the numbered compression adjuster starts at “0” for straightforward baseline setup, and the removable rebound knob doubles as the HSC and ABO adjuster for streamlined on-bike tuning.