E-Thirteen Helix 11 Speed Race Cluster - XD Driver - Bronze - 46T - 11 Speed PDP|Option New design interlinked cell protectors

New design interlinked cell protectors are highly perforated and secured in a mesh pocket for excellent breathability and core cooling

Whether this is actually the case is up to you to decide

strong and affordable chain guide that has options for both ISCG 05 and BB mounting

Mounting style: These are a slip-on grip with dual lock-on rings

E-Thirteen Helix 11 Speed Race Cluster - XD Driver - Bronze - 46T - 11 Speed PDP|Option New design interlinked cell protectorsUnlike 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. 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 significantly decrease the wear life of your new cassette. Installing a new chain with your new cluster is a much better and economical