e*thirteen Helix Plus Replacement Cogs - Aluminum | 42-50T | 12-speed | XD

e*thirteen Helix - More range, less weight Helix-Helix Plus components are designed to close the compatibility gap between SRAM and Shimano components, ensuring versatility and flawless performance. Helix Plus cassettes have interchangeable sprocket sets. This means that ongoing service and replacement costs are less than half the cost of SRAM cassettes. As an added bonus, Helix Plus 12-speed cassettes are backwards compatible with existing TRS+ 9-50 cassettes and can be used to upgrade these cassettes. Future-proof your bike with e*thirteen Helix. Highlights of the e*thirteen Helix Plus Replacement Cogs - Aluminum | 42-50T | 12-speed | XD The aluminum sprocket set includes 2 sprockets 42/50 teeth as one block Can be combined with steel sprocket set FWS20-117 to form a Helix Plus 9-50 cassette Both packs are backwards compatible with TRS+ 9-50 cassettes Compatible with SRAM and Shimano 12-speed drivetrains Improved shifting performance including Shimano 12-speed compatibility Improved interface between steel and aluminum cassettes Freehub mounting: XD and XDR only 556% Range Notice: When installing the Helix Plus sprocket, as with any cassette, the manufacturer recommends checking the wear of the chain. If your chain shows 0.5% or more wear, the service life of your new cassette will be significantly reduced. Installing a new chain along with the new cassette is a much better and more economical solution.