Hubs
Browse used BMX hubs for sale from riders across the UK. This covers front hubs on 3/8in and 14mm axles and rear hubs of all three types: cassette with a 9t or 10t driver, freecoaster with a clutch, and older screw-on freewheel hubs. Almost all are drilled 36 hole, which is what BMX rims are built around, and most listings come from riders rebuilding onto a new rim.
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What kinds of BMX hub are there?
Front hubs are simple: a shell, two sealed bearings and an axle, with the choice being axle diameter and whether the flanges are strong enough for peg loads. Rear cassette hubs put the ratchet in a removable driver, which is what allows a 9t sprocket and short chainstays, and the driver unscrews for service. Freecoasters replace the pawls with a clutch that unhooks when the wheel rolls backwards, which is why they cost more and have more inside them to wear.
What driver size and axle do I need?
Nine teeth is the common driver, paired with a 25t chainring for a ratio close to the old 44/16 setups; 10t and 11t drivers last longer and need a 28t or 30t ring to keep the same gearing. Rear axles are 14mm on freestyle hubs, and a frame with 14mm dropout slots will need adaptors to take a 3/8in axle rather than the other way round. Check the driver thread and bearing sizes for the specific hub before buying spares, since they are not shared across brands.
Should I buy a hub or a built wheel?
A hub alone is worth it when you have a straight rim to reuse or want a combination nobody builds as stock, and when the seller is breaking a bike and pricing the parts individually. Otherwise a built rear wheel or front wheel is usually cheaper than a hub plus spokes plus a build, because lacing and tensioning is a paid job unless you do it yourself.
What should I check on a used BMX hub?
Hold the shell and turn the axle by hand to feel for notching and drag from grit that has worked past the seals, then push the axle sideways for play. On a cassette, unscrew or at least turn the driver backwards to hear whether the pawls engage evenly, and inspect the driver teeth for hooking. On a freecoaster, check that the slack is consistent through a full backwards revolution and does not grab. Look at the flanges around the spoke holes for hairline cracks, particularly on hubs that have run pegs, and roll the axle on a flat surface to check it is straight.
What is a fair price for a used BMX hub?
A sealed-bearing cassette hub from a known name such as Odyssey, Primo, Profile Racing or Éclat is generally worth about half new if the axle is straight and the driver engages properly, since bearings are a cheap consumable and easy to press out. Freecoasters sit higher, and any with clutch trouble should be priced as a rebuild rather than a working hub. New is the sensible call for a specific driver size or a left-hand drive setup, both of which are hard to find second hand. The wider wheels and tyres listings are worth checking for complete wheels at similar money.