Onyx Racing Products Vesper Rear Hub

Unlike traditional pawl-and-ratchet hubs that rely on mechanical teeth to engage, the Vesper uses a sprag clutch mechanism. This allows for near-instant engagement with zero lag, providing a completely silent ride and immediate power transfer the moment you pedal.

This specific hook flange model is engineered for compatibility with specialized spoke systems, particularly composite spokes. If you are planning a custom wheel build using standard J-bend or straight-pull steel spokes, you should verify that your rim and spoke choice aligns with this hub's unique flange design.

Yes, the Vesper hub is designed to be modular. It supports a wide range of freehub body standards, including SRAM XD-R, Shimano HG-R, MicroSpline, and Campagnolo N3W, allowing you to adapt the hub as your drivetrain components change.

The 12x142mm standard is a common thru-axle specification for many disc-brake mountain and gravel frames. However, you should always double-check your frame's rear dropout spacing before purchasing to ensure a proper fit.

Absolutely. The Vesper is built for high-performance riding where precision and torque transfer are critical. Its robust construction and instant engagement make it an excellent choice for both competitive racing and technical trail riding.

This hub features a Centerlock disc mount. You will need Centerlock-compatible rotors or a 6-bolt to Centerlock adapter to install your braking system.