NEW e*thirteen Helix R Cassette - 12-Speed, 9-50t, Nickel groupset_family_rival Model:STW TR21v

Model:STW TR21v

Pad Compound: Semi-Metallic

Dimensions: 16 L x 3 H x 3 D in

and Lazer's Safety Mount System (SMS) for cameras and lights

Size: X-Small

NEW e*thirteen Helix R Cassette - 12-Speed, 9-50t, Nickel groupset_family_rival Model:STW TR21vThe e*thirteen HELIX R 12 cassette is an upgrade to any SRAM Eagle or Shimano drivetrain, and offers more range than other cassette options. 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. Works flawlessly with Shimano and SRAM drivetrains Helix R is durable and serviceable, with replaceable gear clusters Cassette Body Type: