Every 200 hours of riding

making the Turbine 35 ideal for high level cross country racers but is strong to handle all day epic trail rides

Hope headsets fit just about any frame and fork combination

comfort and protection for every trail rider

E-Thirteen Helix 12 Speed Race Cluster - XD Driver - Eggplant - 42-50T - 12 Speed Virtual Parent Every 200 hours of ridingUnlike 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