*ONYX* mtb iso hgss hub rear (silver/bolt)

"ONYX RACING RACING PRODUCTS" is the brand specifically making hubs from Minnesota, US.

“A highly unique rear hub equipped with a one-way clutch mechanism—the Sprag Clutch—that transmits rotational force in only one direction.”

This is the “MTB ISO HGSS,” which uses the SHIMANO HG standard and is compatible with the 10mm/135mm bolt-on standard for single-speed setups.

When pedaling, the sprag instantly engages between the hub body and the freehub body shaft, transmitting drive torque to the wheel without any delay.

Furthermore, during free rotation, the absence of ridges on the shaft in contact with the sprag results in extremely low friction loss, minimizing speed loss.

Unlike the ratchet mechanisms used by many manufacturers—where the pawl creates resistance and “noise”—one of its defining features is the complete absence of that noise (it’s inaudible).

While ONYX has earned high acclaim in the world of BMX racing, where even the slightest loss of time is unacceptable during short races, it’s also well-received in the MTB freeride community.

Its meticulous, niche design is typical of a U.S. brand, reminiscent of classic cult manufacturers.

For single-speed enthusiasts, this is a truly exceptional piece.

The very specific and distinctive shape is reminiscent of old USA cult makers.




Please contact : wheel@bluelug.com for details