Giant SLR1 Freehub Body Kit

This specific kit is designed exclusively for 2021 and newer SLR-1 rear hubs that utilize the Star-Ratchet engagement system. It will not be compatible with older hub designs, so please verify your hub model year before purchasing.

Yes, this freehub body is specifically engineered to accommodate SRAM XDR 12-speed cassettes. It provides the correct interface for these modern drivetrain configurations.

If you are comfortable with basic drivetrain maintenance and have the necessary tools to remove your cassette and end caps, this is a straightforward swap. However, if you are unsure about the Star-Ratchet mechanism or proper torque specifications, a professional mechanic can ensure everything is seated correctly.

This kit is designed as a direct replacement for the freehub body itself. Depending on your specific wheel setup, you may need to reuse your existing end caps or source the specific end caps required for your axle standard.

The Star-Ratchet system is known for its durability and reliability, offering a more robust engagement compared to traditional pawl-based systems. It provides efficient power transfer, which is particularly noticeable when you are putting down power on climbs or sprints.