Helix Race 12-Speed 9-50t Cassette
Helix Race 12-Speed 9-50t Cassette, The e*thirteen Helix Race 12-speed 9-50t cassette is an upgrade to any SRAM(TM) Eagle or Shimano(TM) 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.Works flawlessly with Shimano and SRAM drivetrains including electronic shift systemsCNC optimized for light weight and wide rangeDurable and serviceable with replaceable gear clustersEngineered with improved durability of 2 part steel and aluminum assemblyXD driver compatibleTECH SPECSDetails: Cassette Body TypeSRAM XD 11/12 SpeedCassette Body TypeSRAM XDRCassette Cogs9-11-13-15-17-20-23-27-31-36-42-50Defined ColorBlueDefined ColorSilverDrivetrain Speeds12Weight375g