Helix Race 12-Speed 9-50T Cassette Aluminum Replacement Clusters service parts 142x12mm Rear hubs are available

142x12mm Rear hubs are available with HG or XDR freehub options

TPX bearings for lower friction and longer service life

and softer medium tack sidewall knobs

No matter how good a Presta valve is

custom grease fill

Helix Race 12-Speed 9-50T Cassette Aluminum Replacement Clusters service parts 142x12mm Rear hubs are availableUnlike SRAM Eagle, Helix Race cassettes have replaceable gear clusters. That means ongoing service and replacement costs will be less than half that of SRAM cassettes. As an added bonus, Helix R 12s clusters are backward compatible with and can be used to upgrade your existing TRS+ 9 50 cassette. When installing the Helix Race cassette, as with any cassette, we recommend checking chain wear. If your chain shows 0. 5% or more wear, you will