Helix Race 12-Speed 9-45T Cassette Color:Grey The tool-free travel adjustment allows

The tool-free travel adjustment allows you to fine-tune the amount of drop without removing the post from the frame

Extensive CNC machining for light weight and looks that kill

2 motor systems

Available Full Coverage for traditional ISCG05 bikes and "Lower Only" version (seen on this page) for applications on most popular high-idler bikes

Turbocharger-compatible Upper Sliders are available separately for e*thirteen e*spec Chainguides

Helix Race 12-Speed 9-45T Cassette Color:Grey The tool-free travel adjustment allowsDROP IN GRAVEL UPGRADE: Helix Race Gravel 12 speed, 500% Range, 330g The Helix Race 12 Speed 9 45T cassette extends legendary Helix shift performance and is compatible with SRAM, Shimano, and TRP Shifters and Derailleurs of the same gearing count and similar cage capacity, to the lightweight Gravel and XC marketplace. PRODUCT FEATURES Compatible with SRAM, Shimano, and TRP Shifters and Derailleurs of the same gearing count and similar cage capacity