e*thirteen Helix R Cassette 9DH228 Suction Power: 25W/50W Max 100W

Suction Power: 25W/50W Max 100W

as the Alpha you get to give out different levels of audible tone or vibration command

Optimized waffle grip pattern in pedal area for superior pin grip

Dual Comfort

Protects devices from theft

e*thirteen Helix R Cassette 9DH228 Suction Power: 25W/50W Max 100WThe HELIX R Cassette is an upgrade to any SRAM Eagle or Shimano drivetrain, with more range than other cassettes 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. 1 aluminum cogs, 10 steel cogs Designed for use with XD and XDR drivers only