Largest bandwidth. Highest compatibility.
The e*thirteen Helix Race cassette is a high-bandwidth, super-lightweight cassette designed for racing.
The smaller sprockets are made of steel for strength, and the large sprockets are made of high-strength aluminum for weight optimization. The result is a lightweight yet very durable cassette for SRAM and Shimano 12-speed drivetrains.
The tooth contours have been optimized for better shifting performance, and for versatility, the cassette conforms to the SRAM XD standard.
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Technical details of the e*thirteen Helix Race cassette
- range of use: MTB, e-Bike
- material: steel, aluminum
- freehub mount: SRAM XD/XDR
- 2-piece design for easy assembly / maintenance
- compatible with Shimano, SRAM and TRP drives (12-speed)
- gradation: 9-11-13-15-17-20-23-27-31-36-43-52 (578%)
- weight: approx. 404 g (manufacturer’s specification)

















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