E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Grey - 9-50T - 12 Speed Heavy/Bulky Cons: Outside of the claimed

Cons: Outside of the claimed stronger axle the only other difference to the MX4 is the cleats that come with the MX6

The most aggressive model dedicated to e-bikes: made for those who seek fun and performance without compromises

What makes this the ultimate computer

Compatible with the Park 106 Work Tray and PTH-1 Paper Towel Holder

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Grey - 9-50T - 12 Speed Heavy/Bulky Cons: Outside of the claimedThe 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