- Engineered 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
