The Vesper Centrelock hub is available in 24, 28 or 32 hole drillings with steel bearings as standard, or an optional hybrid ceramic bearing upgrade costing £195. The freehub itself is machined from 7075 aluminum alloy and utilizes replaceable steel pins to reinforce seven of the splines.ĭesigned and made entirely in Minnesota, USA, Onyx Racing hubs have a unique hubshell design which is available in a huge variety of anodised or powder coated finishes with matching or contrasting end caps to suit your style. Onyx Racing Hubs feature a modular freehub unit enabling easy switches between Shimano HG and SRAM XDR standards, and Shimano freehubs feature steel inserts to combat gouging while saving weight over a steel freehub. Since there are no teeth or spring-engaged pawls like those found in conventional ratchet mechanisms, Onyx hubs are almost noiseless during freewheeling. When a rider pedals to induce torque, the sprags rock slightly to wedge between the hub and driver, giving Onyx hubs infinite points of engagement, transferring pedaling torque almost instantly.

Their unusual shape allows freewheeling in only one direction. In addition, all sprag elements maintain gentle contact with the driver and hub body, gliding with minimal friction until torque is applied.

Sprag clutches are unique because they engage instantly but operate silently. This unique hub uses a sprag clutch drive mechanism. Onyx Racing Hubs Vesper Centrelock model brings the brands unique silent engagement hub into a more acceptable weight bracket for road and gravel riders. Home / Components / Hubs / Onyx Racing Hubs Onyx Racing Hubs £825.00

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