E*thirteen Helix Race 12S cassette

Most range! Cross compatible!

E*thirteen expanded drivetrain possibilities for every rider with the original 9-50T Helix Race Cassette with 533% gear range. The proprietary 9t sprocket and patented two-piece construction gave riders an unprecedented ability to build the drivetrain of their choice. E*thirteen developed 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 you’ve got the most gear range you can get from a single-ring, 12-speed setup.

Features

• Widest range in the galaxy at 578%
• Cross compatibility with Shimano, SRAM, and TRP drivetrains and chains
• 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
• Hope XD drivers are undersized at the clamp location and require a Cassette Shim Kit.

Technical specifications

• Freehub Mount: XD™ and XDR™ Drivers Only
• Material: 2 aluminum cogs, 10 steel cogs. PVD finishing on Intergalactic model improves durability and wear life.
• Range: 578%
• Size 9-52T: 9, 11, 13, 15, 17, 20, 23, 27, 31, 36, 43, 52
• Speeds: 12 Speed
• Manufacturer weight: 404 g.