e*thirteen Helix Race Cassette - 12-Speed, 9-50t, Bronze

The e*thirteen Helix Race 12-speed 9-50t cassette is an upgrade to any SRAMTM Eagle or ShimanoTM 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 systems
• CNC optimized for light weight and wide range
• Durable and serviceable, with replaceable gear clusters
• Engineered with improved durability of 2 part steel and aluminum assembly
• XD driver compatible

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