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Onyx Vesper Front

Onyx Vesper Front

More than two years in the making.

The long anticipated Onyx Vesper has landed. The signature Onyx Racing Products sprag clutch hub is now available in a lighter and more easily adaptable format. The Vesper inherits the performance focused DNA of its predecessor without compromise. Significant revisions and tweaks on both the front and rear hubs result in a weight saving of around 156g depending on the configuration.

Can't find the hub colour to match your bike, looking to match your hubs with your frame and fork graphics or evan a very popular fork stancheon colour, Prismatic Powders will have a colour for you  .

Why Prismatic Powders? Prismatic Powders has the world’s largest selection of powder coating colours. With over 6,500 custom colours and finishes.

Hub Width
Hub Colour
Hub Drilling
Bearing Type
Lead time: Currently 6-8 Weeks
Available to order
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23% weight saving over previous model
A complete redesign of the freehub and drive mechanism account for most of the weight savings.  A smaller set of grouped sprags interface with a narrower steel contact patch on the drive axle. The reduction in the amount of stainless steel, resulted in significant weight savings.  The freehub itself no longer rests on a steel axle, but utilizes a keyed interface. Once again, less steel means more weight savings.
How much weight was saved?
Front Boost 32h 6-Bolt

Onyx Generation  1 : 226g

Vesper: 177g
Front Boost 32h Centerlock

Generation 1: 225g

Vesper: 155g
Rear Boost 32 6-Bolt

Generation 1 474g

Vesper: 409g
Rear Boost Centerlock

Generation 1: 449g

Vesper: 372g

Instant Engagement

The Vesper still maintains the instant engagement and silent, drag free coasting of its predecessor. The revamped sprag configuration is lighter and utilizes less material without sacrificing performance.  Those on E-Bikes and Downhill bikes are best served by the original Onyx hub which will still be available for purchase.

Ceramic or Steel Bearings

The Vesper comes stock with durable stainless steel bearings. An upgrade to Verinent hybrid ceramic bearings for the hubshell is available for $60 on the  front, $100 on the rear. Dual lipped seals on the exterior facing sides of the bearings keep everything sealed and protected from the elements. Service ability remains simple and accessible.


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