11/30/2023 0 Comments Vesper hubs![]() Having every ounce of force from your pedal kicks turn into forward momentum is hugely beneficial in these situations. That being said, the benefits do translate to mountain biking in several ways.ĭuring technical climbing, it is important to be able to react with quick little pedal kicks to get up and over roots and rocks. Being able to lay down power right out of the gate and retain as much momentum as possible when coasting are particularly beneficial to someone who is pumping and scrubing their way around a track. Why does fast engagement and low drag matter, especially when they come at a price point above many other hubs out there? The benefits are particularly obvious in the sport that these hubs originated in, BMX racing. This all happens in a space of time so short that it feels instantaneous, and results in a system that has very little drag when compared to any other hub design. #onyxhubs #ceramicbearings #spragclutch #sprag #RideFanatikĪ post shared by Fanatik Bike Co on at 8:30am PDT ![]() Here are the inner workings of another one of our favorite hubs, those made by We are airing our full background and review of these US made anodized beauties, find it on the Fanatik video gallery (on website) and later today, the full write up on our blog. It is worth noting that with a pawl system, there is a direct relationship between engagement and drag higher engagement creates more drag. ![]() This is in contrast to the most commonly used engagement system, which employs pawls like those shown below, and produces drag that is most easily discerned as a loud clicking noise. This effort has evolved into a full fledged line of bicycle hubs, from road, to mountain, and even fat bikes (a more common sight in snowy Minnesota than out here in the PNW).Īt the heart of Onyx’s hubs lies the aforementioned sprag clutch, which is the mechanism that allows these hubs to roll with extremely low drag, make no noise at all, and engage instantaneously. The search ended when he found and adopted a sprag clutch, often used in automotive and industrial applications, for use in bicycles. The father, Jim Gerhardt, felt that he could design a hub that had far less drag than other options on the market and set out to do so. Not being one to settle, he started to tinker with with his son’s bike. His father had long time experience in machining through his involvement in his family’s farm equipment manufacturing company, Christianson Systems. Onyx Racing Products was born when a young Minnesota boy became involved in BMX racing. Side-note, if you'd rather watch our video review, head to our YouTube channel. The Onyx hubs have proven to be be just that, a hub that is so dramatically different than anything else out there that (with the exception of the Push Elevensix), they have overshadowed everything else on my ride. While many hubs have wowed me with their intricate, almost watch-like inner workings, I’ve never encountered a situation where a hub’s performance was the most astonishing part of a bike, much less a bike like my Santa Cruz Hightower, which is about as Gucci as I could make it. ![]() ![]() From the confoundingly simple ratchet drive of the DT 350, to the pinnacle of pawl systems on the Industry Nine Hydra, I’ve ridden the whole gamut. I’ve spent the last 10 years on hubs of all sorts. Lastly, Onyx has redesigned the driver body, which is no longer completely steel. This is because they have reduced the width of the sprag mechanism itself, another source of weight savings. The hub flanges now have a cool star profile, and the center of the hub shell is not a static diameter. How did they do it? If you compare the Vesper to the first gen Onyx hubs, you'll see that as much material as possible has been removed from the hub shell. Because this is all un-sprung weight (not suspended by your fork and shock, like your body weight is), it dramatically affects how well your suspension performs. What's the difference? Functionally, only that the Vesper rear hubs weigh 136 grams less, resulting in a total weight of 389 grams (.86lbs) - down from 525 grams (1.16 lbs). After years of teasing, Onyx has released their updated sprag clutch equipped Vesper hubs. ![]()
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