• Probably worn cartridge bearings that need replacing, pull the caps off (probably really fucking awkward) and see what bearings you need then DIY, or give the fuckers straight to a shop.

  • I think there's little snap ring under/around the silver part of the axle, you'll want that out to get it off.

    Giant hub?

  • Probably, depending on the hub various bits will pull off (although they'll be seized because they'd have been installed dry ages ago) unless there's either a 5mm Allen in the centre of the axle or some spanner flats in which case undo stuff. That hub looks like the axle runs right through and the cap and the silver and black but should remain (but may not) together and pull off, a round axle vice helps. Then twat the axle through with a hammer once off. You might have more luck supporting the hub shell and twatting the axle to start with if it's made up like I said it might be and then separating everything.

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