Jenson USA
E.thirteen | Helix Race Cassette 9-52T | Grey
- Jenson USA$399.95Buy
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From Jenson USA
E*Thirteen Helix Race Cassette Precision Shifting Performance Shifting is an important part of riding a bike. However, you don't want just any cassette on the back of your bike, causing missed or slow shifts. The E*Thirteen Helix Race Cassette is engineered to deliver precision shifting performance with an industry-leading 578% gear range. The proprietary 9-tooth smallest cog combined with the 52T largest cog enables a smaller chainring for improved clearance, lighter system weight, and a lower bail out gear ratio without high gear compromise.