Helix Plus 12-Speed 9-50T Cassette Replacement Clusters Size:Black 12 Speed Aluminum Cluster 42-50t with a center tube to

with a center tube to seal the BB shell

Invest in Rail XC sunglasses today and unlock the true potential of your baseball game and cycling adventures

mounting nut

Brad Waldron

You never want to get stranded by your gear

Helix Plus 12-Speed 9-50T Cassette Replacement Clusters Size:Black 12 Speed Aluminum Cluster 42-50t with a center tube toHelix Plus 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 12s clusters are backward compatible with and can be used to upgrade your existing TRS+ 9 50 cassette. When installing the Helix Plus cassette, as with any cassette, we recommend checking chain wear. If your chain shows 0. 5% or more wear, you will significantly decrease the wear