Mounting: Wide flange

SAS-TEC: SAS-TEC's 3D-protectors made of viscoelastic soft foam offer incredible shock absorption values

BB spindle interface - DUB

Mounting style: 4 x 104

Every 200 hours of riding

E-Thirteen Helix 12 Speed Race Cluster - XD Driver - Eggplant - 42-50T - 12 Speed Virtual Parent Mounting: Wide flangeUnlike 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