Ethirteen Helix Sram XD Cassette 12s 9-50T S3-Cat-HelmetsGoggles&Eyewear-GiroHelmets-Sport enhancing the overall riding experience

enhancing the overall riding experience

Weight 59 grams

Rapidaptor holder ensures rapid bit change

they come in a variety of lengths

Ethirteen Helix Sram XD Cassette 12s 9-50T S3-Cat-HelmetsGoggles&Eyewear-GiroHelmets-Sport enhancing the overall riding experiencee*thirteen Helix Race Cassette 12s 9 50T Bronze Suitable for Sram XD and XDR drivers Helix Race 12 speed, 556% Range, 384g More Range, Less Weight The HELIX Race Cassette is an upgrade to any SRAM Eagle or Shimano drivetrain*, with more range than any other cassette on the market. 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