E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Purple - 9-50T - 12 Speed Needs Images 7075-T6 alloy

7075-T6 alloy

An EVA midsole at the heel and toe helps this shoe to shine both on and off the bike with positive power transfer and true walkability

Material: aluminum/steel/bacon

SPROCKET MATERIAL Steel/ aluminum

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Purple - 9-50T - 12 Speed Needs Images 7075-T6 alloyThe HELIX R 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 drivetrain. The improved tooth profile of the Helix cassette's features Shimano 12 speed level shifting performance with the improved reliability of a steel and