E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Intergalactic - 9-50T - 12 Speed Dangerous Goods depending on which option you

depending on which option you select

35mm: 800mm

Slip-on glove style

6001 12x28mm

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Intergalactic - 9-50T - 12 Speed Dangerous Goods depending on which option youThe 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