E-Thirteen Helix 12 Speed Race Cluster - XD Driver - Grey - 42-50T - 12 Speed Images Uploaded - Ready for Review 15% lycra (spandex)

15% lycra (spandex)

Who's this item for: This is a premium chain for riders that demand the best performance you can get

with protection that hits above it's class

The Cura 4 inherits its quality of materials from its smaller brother

E-Thirteen Helix 12 Speed Race Cluster - XD Driver - Grey - 42-50T - 12 Speed Images Uploaded - Ready for Review 15% lycra (spandex)Unlike SRAM Eagle, Helix R 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 R cassette, as with any cassette, it's recommended to check for chain wear. If your chain shows 0. 5% or more wear, you will