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 Body Type: SRAM XDR
- Cassette Cogs: 9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 42, 50
- Color: Intergalactic
- Defined Color: Blue
- Defined Color: Silver
- Drivetrain Speeds: 12
- Range: 9-50
- Weight: 375
