The e*thirteen Helix R 12-speed cassette is an upgrade to any SRAM™ Eagle or Shimano™ drivetrain, and offers more range than other cassette options. 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 systems
- CNC optimized for light weight and wide range
- Helix R is durable and serviceable, with replaceable gear clusters
- Engineered with improved durability of 2 part steel and aluminum assembly
- XD driver compatible
Specifications:
- Cassette Body Type: SRAM XD 11/12 Speed
- Cassette Cogs: 9- 11- 13- 15- 17- 20- 23- 27- 31- 36- 42- 50
- Color: Nickel/Gray
- Defined Color: Silver
- Drivetrain Speeds: 12
- Range: 9-50
- Weight: 345