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    Convert your R45 hubs to fit Shimano HG11, HG12, Micro Spline, or SRAM XDR cassettes with our Gen 4 conversion kit.


    Gen 4 conversion kits include a pre-assembled axle, driveshell, adjusting clamp, and QR axle ends for a plug and play swap. Installation requires a 2.5mm hex key and T10 Torx tool.



    • Compatible with R45 hubs. Serial numbers will begin with 631.

    • Not compatible with Classic hubs.

    • 130x9mm QR axle.

    • Compatible with all R45D Centerlock hubs. Serial numbers will begin with 6710.

    • 142x12mm axle.

    *Please note that our specifications may be impacted by running substitution changes, we highly recommend confirming the specifications of our products at the time of sale. *Recommended Retail Prices are subject to change without notice and may vary from store to store depending on freighting and assembly costs. Please read our Terms & Conditions

    *Giant & Liv Bicycles are available for purchase online, but due to warranty regulations, must be shipped to qualified Giant dealers, as bicycles must be assembled by a qualified bike mechanic in an approved store - This is an international policy and usually will require an additional fee to build the bike. This will be confirmed by one of our online staff after purchase of the bike.

    *Specialized Bicycles are available for home delivery nation wide.

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