Optimize your performance in mountain biking with the E*Thirteen Helix Race cassette, lightweight and perfectly suited for modern drivetrains.
Helix Race 12 speeds, 556% range, 384 g More Range, Less Weight The HELIX Race cassette is an upgrade for any SRAM™ Eagle™ or Shimano™* drivetrain, offering a wider range than any other cassette on the market. The 9-tooth sprocket allows you to reduce the size of a chainring while keeping the same high gear ratio, which not only improves ground clearance but also reduces the overall weight of the drivetrain. PRODUCT FEATURES Compatible with SRAM®, Shimano®, and TRP® shifters and derailleurs that have the same number of speeds and similar derailleur capacity. The two-piece design allows for the replacement of aluminum cogs. Improved e*spec version for use on electric bikes. BENEFITS Reduces the unsprung weight of the rear wheel for better suspension function and improved handling. Excellent shifting performance with Shimano™ and SRAM™ systems without compromise. The wider range and 9-tooth sprocket from e*thirteen allow riders to use a 2-tooth smaller chainring for better ground clearance and reduced weight. *Requires an XD™ freehub body. WARNING: Hope XD freehub bodies are undersized in terms of tightening and require a cassette spacer kit that is included in the box with the cassette.
| Brand | E*Thirteen |
| Supplier reference | FW2HRA-100 |
| Color | intergalactic |
| Color | Blue |
| Gender | Mixed |
| Age group | Adult |