E*thirteen Helix Plus 12sp Cassette 9-50t - Black CheckoutSpec= Cable with 4 digit combination lock Material: 6061-T6 aluminum brackets

Material:  6061-T6 aluminum brackets

Material:   6061 T6 aluminum

The 1Zero HiTop S carbon rim complies with the terrain thanks to Zipp’s proprietary HITOP Technology for carbon layup

we do not recommend using the Wolf Tooth Valais or similar products that limit the downward (retracting) travel of the post

E*thirteen Helix Plus 12sp Cassette 9-50t - Black CheckoutSpec= Cable with 4 digit combination lock Material: 6061-T6 aluminum bracketsEngineered for E bike durability Work flawlessly with Shimano and SRAM (non Transmission) 12sp drivetrains, regardless of different cog spacing and chain behavior Improved reliability of a steel and aluminum assembly Offering a 556% range utilizing an XD driver to enable a 9 50t, 12sp cassette Special note for Hope hub owners: Hope XD drivers do not adhere to the XD specification and require an additional shim. Shims can be acquired from E*Thirteen