E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Grey - 9-50T - 12 Speed Heavy/Bulky Chain retention:Adjustable slider with co-molded

Chain retention:Adjustable slider with co-molded soft rubber for sound reduction

hub Synthesis Standard

What makes this the ultimate computer

Additional Reservoir Carry: Ability to carry up to 6-litres of water by adding in another 3 litre reservoir

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Grey - 9-50T - 12 Speed Heavy/Bulky Chain retention:Adjustable slider with co-moldedThe 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