E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Purple - 9-50T - 12 Speed YGroup_7033823756333 Cons: It is kind of

Cons: It is kind of heavy

Features suggested cut down marks

Lightweight for a high volume casing

lightweight and even has a port for a water bladder

ProWALL Casing: Reinforced for extra puncture protection and improved handling at lower pressures

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Purple - 9-50T - 12 Speed YGroup_7033823756333 Cons: It is kind ofThe 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