This spacer is positioned between the bearings of rear E-sync hubs. Compatible with Centerlock E-sync, Neo, and Neo Ultimate 12x150mm, 12x157mm, and single-speed rear hubs. Not compatible with any 135mm,142mm, or 148mm hub. Not compatible with 6-bolt hubs. Not compatible with M-pulse hubs.
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.
