Description

Get more range with less weight. The ethirteen Helix R 12-speed cassette delivers an impressive 556% range and weighs a mere 345 g. Plus, it's compatible with both SRAM Eagle and Shimano drivetrains.

Points clés

• 9–50T design includes 9-, 11-, 13-, 15-, 17-, 20-, 23-, 27-, 31-, 36-, 42- and 50-tooth cogs
• 9-tooth cog lets you step down one chainring size while keeping the same top end gearing, providing not only better ground clearance, but also an overall lighter drivetrain
• Smallest 10 cogs are built from steel for added durability, while the 2 largest are built from aluminum to keep overall weight down
• Built for compatibility with both SRAM Eagle and Shimano drivetrains, despite the differences in cog spacing and chain behavior
• XD driver required