Helix Race 12-Speed 9-50T Cassette Aluminum Replacement Clusters service parts and softer medium tack sidewall

and softer medium tack sidewall knobs

TPX bearings for lower friction and longer service life

we tweaked the arm design and strategically machined the chainring so that only minimal sacrifice was made in impact strength for large gains in weight reduction

Available in 27

it's the ideal choice for enhancing your e-bike's performance

Helix Race 12-Speed 9-50T Cassette Aluminum Replacement Clusters service parts and softer medium tack sidewallUnlike 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