e.thirteen Helix Race Cassette 12-Speed - 9-50 Teeth - Gray

A cassette that is equally compatible with SRAM and Shimano and also has a powerful bandwidth of 556%, that is the new Helix Race. The shifting performance has been optimized to always guarantee you the ideal gear change in every situation, and its reliability never lets you down. The two-piece design allows you to separate the top two gears from the rest of the cassette, making it easy to swap either the upper or lower part of the cassette or to change the color of the top two gears with a new sprocket set.

 
Features:

• Two-piece design
• Optimal shifting performance
• Market-leading 556% bandwidth
• Improved durability
• Gears: 12
• Gradation: 9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 42, 50 teeth
• Weight: 345 g
• Freehub body: SRAM XD
• Material: Top two gears: Aluminum, Lower gears: Steel