e*thirteen Helix Race 12-Speed 9-50T Cassette - Bronze Size:9-50 GRS-certified recycled materials used in

GRS-certified recycled materials used in both grip and lock ring

The wrap-around Prizm™ lenses block out the sun

years in the making

cementing the valve's reliable closure

and tyre clearance

e*thirteen Helix Race 12-Speed 9-50T Cassette - Bronze Size:9-50 GRS-certified recycled materials used inThe HELIX Race Cassette is an upgrade to any SRAM Eagle or Shimano shifter and derailluer combination*, 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 drivetrain. Features Compatible with SRAM, Shimano and TRP shifters and derailleurs of the same gearing count and similar cage