Helix Race | Cassette | 12 Speed | 9-52T | Black (FW2HRA-123)

Helix Race | Cassette | 12 Speed | 9-52T | Black (FW2HRA-123)

HELIX RACE 12-SPEED 9-52T CASSETTE

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, we’ve 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 you’ve got the most gear range you can get from a single-ring, 12-speed setup.

PRODUCT 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.

PRODUCT SPEC
Compatibility - Please reference our hub compatibility article to ensure the e*thirteen cassette will work on the hub you have before purchase.
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
Weight - 404g