I had the BB faced down to 68mm, but an attempt to rethread to 24tpi mangled the drive-side threads, so I opted for the Velo Orange threadless BB with a 113mm spindle.
I'm not too sure to be honest as I didn't do it myself. The non drive-side rethreaded fine, but for some reason the drive-side didn't and wouldn't hold a cup when it was screwed in. After taking it out again, the threads were shot.
Oops!
Oops, you forgot something.