E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Intergalactic - 9-50T - 12 Speed Dangerous Goods All protection materials perforated for

All protection materials perforated for ventilation

while still having a thick 9

6001 12x28mm

depending on which option you select

35mm: 800mm

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Intergalactic - 9-50T - 12 Speed Dangerous Goods All protection materials perforated forThe 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