This spacer is positioned between the bearings of front E-sync OS hubs. Compatible with the most common 15x110mm hub spacing. Not compatible with 20x110mm, 12x100mm, 9x100mm thru-axle, 9x100mm quick-release, and RockShox Torque-Cap 100mm E-sync OS hubs. Not compatible with Centerlock or non-OS versions of E-sync and Neo 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.
