Helix Race 12-Speed 9-50t Cassette

The e*thirteen Helix Race 12-speed 9-50t cassette is an upgrade to any SRAM™ Eagle or Shimano™ drivetrain, and offers a 556% range. The 9 tooth cog lets you step down one chainring size while keeping the same top end gearing and provides not only better ground clearance, but an overall lighter drivetrain.

• PVD finish for improved durability