• Thanks for the advice, I’ve checked and the bb is a standard 68mm, I fear that the threads might have been tapped one too many times and now don’t have enough bite left in them. I’ll take it to my local lbs and see what they say. Anyone ever tried a press fit bb for a square taper crank???

  • Threadless BBs are a thing, they do work. You can also get a frame builder to braze in new threads if it's worth doing so.

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