90g per pair

006 Barcode: 710845848001

Air Director back panel

Cage Length: Long Cage

The PCS-4-2 uses the 100-5D Micro-Adjust Clamp

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Bronze - 9-50T - 12 Speed Exclusive 90g per pairThe 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