The sleeve was only out of round due to me compressing it in a vice to get the cup out.

Hamfisted animal!

However that does start bringing in massive levels of complexity

Obviously it’s up to you, but in terms of the claim it is literally ~2 minutes work on your part and it’s going to be a lot easier to find a solution with an extra few quid in the bank than not.

I wouldn’t claim for accident damage, but if he’s going to keep riding it, I would make sure he’s got good dental cover.

There’s a plan B in the pipeline maybe. But currently this week I’ve bought a new bike, 2 headsets, new DH forks, new front Hope wheel, I’m struggling mate. A bloke you may know from motorbikes has a black frame for sale, but needs chainstay swapping as it’s 29, no problem there as they’re fine on his purple bike. But currently I just can’t justify a new frame