Fits E-sync hubs and includes pawls, springs, pawl retainer, 0.5mm freehub spacer, 1.8mm cassette spacer, and freehub seal. Bearings are pre-installed. Compatible with SRAM XDR style cassettes. SRAM XD cassettes are compatible when used in conjunction with the included spacer. Not compatible with any Shimano cassettes. Also compatible with Neo and Neo Ultimate hubs as a more durable upgrade.
E-sync hubs are built to last, including under the higher torque and weight of eBikes. A 6066 alloy shell, heat-treated steel ratchet ring, reinforced pawls, and full Enduro bearings rovide brute strength, while 8.18° engagement provides the speed.
