This steel rear axle provides maximum durability for E-sync and Neo 12x148mm Boost hubs. Weighing only 40g more than an alloy axle, the steel axle provides a significant increase in durability. This axle features a high-precision centerless ground treatment that ensures perfect bearing fit. Compatible with E-sync and Neo 6-bolt and Centerlock hubs. Not compatible with 135mm, 142mm, 150mm, 157mm, or single-speed 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.
Axle upgrade for the NEO hub after long term torture test!
After 6 years of racing and trail riding and two New England CAT2 division championships, I discovered the NEO rear axle cracked thru and basically held together by the rear axle skewer. I discovered the issue before any other damage could occur. The new steel axle is stronger and working as it should. Great product and fast shipping! Thank you Stans!