e*thirteen Helix Race Rueda Dentada Superior 12-Vel Aluminio, marrón

The HELIX R 12 Speed sprocket is an upgrade to any SRAM Eagle or Shimano drivetrain. Featuring the most range and lowest weight of any cassette on the market.

compatibility
Both the Helix R 11 and 12-Speed sprocket work flawlessly with Shimano and SRAM 12s drivetrains, despite the challenges in designing for the different cog spacing and chain behavior.

performance
The improved performance of e*thirteen's new Helix cassette features great Shimano 12s shifting performance and improved reliability of steel and aluminum assembly. The new Intergalactic PVD finishing is twice as durable as anodized models.