This is a replacement bearing cage for BMX bottom brackets using the standard 5/16 inch size. If your bottom bracket is feeling loose, grinding, or won't spin freely, a worn bearing cage could be the culprit. This is the kind of part you'll need when rebuilding or servicing a BMX crank set, whether you're fixing up an old bike or maintaining one you ride regularly.
This is a replacement bearing cage for BMX bottom brackets using the standard 5/16 inch size. If your bottom bracket is feeling loose, grinding, or won't spin freely, a worn bearing cage could be the culprit. This is the kind of part you'll need when rebuilding or servicing a BMX crank set, whether you're fixing up an old bike or maintaining one you ride regularly.
We sell these individually, so you can replace just what you need. It's a straightforward fix if you're comfortable working on your drivetrain, though if you'd rather have someone else handle it, pop in and we can sort it for you.
Free same-day Click & Collect. Order online and collect from our London workshop, usually ready within a couple of hours. We will email you the moment it is ready.
Home delivery. Dispatched the same working day on orders placed before 3pm. Standard UK delivery is tracked and typically arrives in 2 to 3 working days.
Fitting while you wait. Buying a part you would rather not fit yourself? Our mechanics can fit most parts on the spot. Just ask when you collect.
30-day returns. Changed your mind? Return any unused item in its original packaging within 30 days for a full refund.
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Pop in, call us, or book the bike in. Our mechanics will sort it while you wait.