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MOST RANGE. CROSS COMPATIBLE.

e*thirteen expanded drivetrain possibilities for every rider with our original 9-50T Helix Race Cassette with 533% gear range. Our proprietary 9t sprocket and patented two-piece construction gave riders an unprecedented ability to build the drivetrain of their choice.

Now, weve built on that winning formula and added a 52T sprocket for an eye-watering 578% total range.

Love to grind climbs? Throw on a 28T chainring and go pull some stumps. Hungry for top speed? Push a big ring, comfortable in the knowledge that youve got the most gear range you can get from a single-ring, 12-speed setup.

PRODUCT FEATURES

• Widest range in the galaxy at 578%
• Compatible with SRAM, Shimano, and TRP Shifters and Derailleurs of the same gearing count and similar cage capacity (Mounts on an XD driver only)
• 2-piece forged/machined design provides ease of assembly/service and reduces waste
• Aluminum and Steel clusters can be replaced separately to reduce service cost
• 43-52t aluminum cluster backward compatible with 9-50T Helix Plus or Race cassettes
• Unique 9T high gear allows use of smaller chainrings for clearance and weight savings
• 5 bright anodized or PVD color options
• Tested extensively for analog and e-bike use

*XD Driver required.

*Hope XD drivers are undersized at the clamp location and require a Cassette Shim Kit.