E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Orange - 9-50T - 12 Speed YGroup_7033431064621 4º of Engagement

4º of Engagement

Pros: Great for maximizing your on-bike storage options

by removing the front section and revealing the shoulder straps

you'll always have proper inflation no matter where you are

The Mountain TT Twin Turbo pump uses an innovative dual stroke system when pumping to compress the air to deliver a high-pressure output

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Orange - 9-50T - 12 Speed YGroup_7033431064621 4º of EngagementThe 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