e.thirteen Helix Race Gravel Cassette 12-speed - 9-45 teeth - nickel grey

The Helix Race 12-speed 9-45 teeth cassette expands the legendary Helix shifting performance and cross-compatibility with SRAM™ and Shimano™ 12-speed drive systems to the lightweight gravel and XC market. Thanks to the 9-tooth sprocket, you can also shift down a chainring size while maintaining the same gear ratio at the top end, which means both better ground clearance and an overall lighter drive.

 
Features:

• Very lightweight, two-piece 12-speed cassette with a wide range
• Material: 7075 aluminum (sprockets 42-50 T) and heat-treated chromoly steel (sprockets 9-36 T)
• Gradation: 9-11-13-15-17-19-22-25-28-32-38-45 teeth (500%)
• Compatible with Shimano™ and SRAM™ 12-speed drives with optimized shifting performance
• A replacement for SRAM™ XPLR™ 10-44T cassettes - a 13% increase in range!
• Fits SRAM™ XD™-Driver freehub bodies
• Weight: 345 g