The RockShox Super Deluxe Ultimate RC2T is the top-tier version of RockShox's Super Deluxe rear shock platform - a shock that blends race-proven performance with a chassis easily tuned to match virtually any full-suspension frame from downcountry through to enduro. The RC2T designation identifies the damper configuration - an updated design with both Low Speed Compression and High Speed Compression adjustment, a numbered compression adjuster for intuitive setup, and a main piston tune matched to the Charger 3.2 damper for Lyrik-specific performance that is equally at home across any trail or enduro application.
This is the 210x55mm size in the Linear XL air spring configuration with Standard D1 chassis. The 210mm eye-to-eye length and 55mm stroke must match your frame's specific shock mount specification - confirm these measurements against your frame's published shock size before purchase. The eyelet diameter is 12.7mm. A lockout switch is shock-mounted.
The Linear XL air spring delivers a consistent and predictable ride feel tunable with easy-to-adjust o-ring tokens - small internal volume reducers that change the spring curve's progression as travel increases. Adding tokens makes the spring more progressive in the later part of the travel for bottom-out resistance; removing them creates a more linear feel throughout the stroke. The Linear XL designation also features a higher maximum PSI than previous versions, accommodating greater system weights for heavier riders or e-MTB applications. Tuning the spring rate is straightforward - adjust air pressure for sag, add or remove tokens for end-stroke feel.
The redesigned RC2T damper provides a wide usable range of both Low Speed Compression and High Speed Compression adjustments without cross-talk between the two adjusters - meaning changes to the LSC setting do not affect the HSC feel and vice versa. This independence makes the RC2T significantly more intuitive to tune than dampers where the two adjustments interact. The numbered compression adjuster allows the rider to start at position zero and add or decrease damping in documented increments, making setup both repeatable and easy to communicate to a mechanic or fellow rider.
A new base valve with a 40% reduction in IFP (Internal Floating Piston) forces makes the Super Deluxe Ultimate the most supple shock in the RockShox lineup while maintaining traction - a design improvement that allows the shock to move more freely and responsively to small trail inputs without sacrificing the control needed for larger impacts.
The Jounce Bottom Out bumper provides end-stroke cushioning, paired with an optional Hydraulic Bottom Out system that restricts oil flow within the last 20% of travel for a soft hydraulic cushion that reduces harsh bottom-out impacts. The removable rebound knob doubles as the HSC adjuster - a space-efficient design that keeps the external adjustment interface clean.
The shock provides 15 clicks of rebound adjustment across a broad range with uniform rebound curves - 15 defined positions that change the rebound character in consistent, predictable increments rather than having an irregular response across the adjustment range. The broad range accommodates the full spectrum from slow rebound for technical terrain where the shock needs to track the ground closely between impacts to fast rebound for high-speed terrain where the shock must recover quickly for repeated impacts.
The main piston compression tune is matched in performance to the Charger 3.2 damper - RockShox's statement that the Super Deluxe Ultimate's midstroke support character is specifically tuned to complement the Lyrik fork's damper performance for a coordinated front and rear suspension feel when paired together.
This listing is for the 210x55mm size - 210mm eye-to-eye length and 55mm stroke. These measurements must match your frame's published rear shock size exactly. Confirm both measurements against your frame's specification before purchase as incorrect shock sizing cannot be corrected after installation.
RC2T is RockShox's damper with independent Low Speed Compression and High Speed Compression adjustment - two separate adjusters that do not cross-talk. A numbered adjuster starting at zero allows setup to be documented and repeated. 15 clicks of rebound adjustment complete the external tuning range.
The Linear XL air spring uses o-ring tokens as internal volume reducers - adding tokens makes the spring more progressive and resistant to bottom-out in the final portion of travel, while removing tokens provides a more linear feel throughout the stroke. Air pressure sets the sag; token count adjusts the end-stroke feel.
The Jounce Bottom Out bumper provides end-stroke cushioning that reduces harsh bottom-out impacts. The optional Hydraulic Bottom Out system restricts oil flow within the last 20% of travel for a soft hydraulic cushion - a configurable additional layer of bottom-out protection.
The increased maximum PSI on the Linear XL air spring is specifically mentioned to accommodate greater system weights - making the shock suitable for e-MTB applications and heavier rider and bike combinations that would exceed the rated range of previous versions at lower maximum PSI.
| Stroke (mm) | 55 |
| Lockout Switch | Shock Mounted Switch |
| Eyelet Diameter (mm) | 12.7 |
| External Adjustments | Rebound Damping |
| Positive Spring | Air |
| Eye to eye length (mm) | 210 |
| keyword search | RockShox Model Year 27 |
| Options | 55Mm (210Mm - Standard) |
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