BB? If you mean the Pedals It is close but it is not too bad, started welding and forgot to check that. Not going to ride this much just cruising around not many turns, Plus all the weld i put on this sucker, its staying where it is. :mrgreen: :mrgreen: Just wanted to make a build with 2 vintage bikes. need to look up the numbers again. both frames are from 60's I think. THANX!!!