E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Intergalactic - 9-50T - 12 Speed PLP|Model Year Featuring Alpinestars’ exclusive and revolutionary

Featuring Alpinestars’ exclusive and revolutionary rear stabilizer for progressive force relief (PFR) the BNS Tech 2 is designed for use in motocross and off-road riding and offers a highly personalized and stable fit while incorporating innovative new features such as a new quick-release locking system

Longer lasting

The brake fluid reservoir on SRAM's latest lever design is optimized for both performance and ease of use

Rubber strap bike mount included

Compatible with Pike

E-Thirteen Helix 12 Speed Race Cassette - XD Driver - Intergalactic - 9-50T - 12 Speed PLP|Model Year Featuring Alpinestars’ exclusive and revolutionaryThe 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