RockShox Rear Shock Damper Shaft Assembly

You likely need a replacement if you notice visible scratches, scoring, or pitting on the shaft surface, which can cause oil leaks or inconsistent damping. If your shock feels 'sticky' or isn't returning properly despite a fresh seal service, the shaft itself may be worn or bent.

No, this specific assembly is engineered exclusively for the Deluxe Ultimate RCT (B2-C2) models from 2023 and newer. Always check your shock's specific model year and generation before purchasing to ensure a correct fit.

While it is a straightforward replacement part, installing a damper shaft requires specific suspension tools, including a shaft clamp and the ability to bleed the damper system. If you are not comfortable working with pressurized suspension components or lack the proper tools, we recommend having a professional mechanic perform the installation.

This product is the damper shaft assembly itself. While it may include pre-installed components, it is standard practice to replace all internal seals and O-rings during a rebuild, so you should have a compatible service kit on hand.

Steel is used for its superior durability and resistance to the high-pressure, high-friction environment inside a rear shock. It provides the necessary structural integrity to handle aggressive trail riding while maintaining smooth damping performance over time.