- Widest range in the galaxy at 578% (9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 43, 52)
- Cross compatibility with Shimano, SRAM, and TRP drivetrains and chains
- 2-part design provides ease of assembly/service and reduces waste
- 2 largest alloy cogs cluster or 10 steel cog cluster can be replaced separately and a ordably
- 43-52t cluster can be retrofitted to upgrade Helix 9/50t cassettes
- Unique 9T high gear allows use of smaller chainrings for clearance and weight savings
- SCM445 Steel and AL-7075-T651 construction for strength, sti ness, light weight and durability
- 5 anodized or PVD options to coordinate with colors and components to match your dream build
- Tested extensively for analog and e-bike use
- HOW TO INSTALL