Thinking about a Campy singlespeed. I have an old Veloce crank and a set of Record wheels, originally 5 speed. They're going into an old Schwinn Prelude frame with 126mm spacing until I can afford something better. Has anyone ever used a Campy crank on their single/fixed? Campy has a very limited BB selection only 102, 111 and 115mm. Before I buy the BB I want to be sure the chainline is correct or close.