I'm gettting ready for yet another project bike, and this one is a fixie, so I want to get the chainline just right.
I'll be using a suzue promax with a duraace lockring, giving a chainline of 42 (thank you sheldon). How do I measure a crank to determine what size BB gives a good chainline? I know that new cranks often give recommendation, but I may use a used crank. I'll be usng a square BB, and most likely an old road double crank or one variety or another.