got an old 2001 frame i want to build up, but needs a bottom bracket, issue is there seems to be US, Euro and spanish sizes, its a Haro frame, but how do you find out sizes etc ?
If it's threaded, it's Euro. Both Spanish and Mid-BB are press-fit. With it being 2001, it'll either be Euro or the older (and much larger) American BB.
If it's 2001 and it's not threaded then it's definitely American. Both Fly and FBM (who instigated the Spanish and Mid-BB designs respectively) didn't do so until a couple of years ago.
