Okay, I'm in the works for getting an old roadster. "Old" being the key word here--it has 584mm rims (Called "Krondäck," 'round here). I would like to have plenty of options for tyres on this bike, so I figure that 559mm rims are the way to go. However, it uses Westwood rims and I'd like to keep it that way. Is there such a beast as a 559 Westwood rim? Google isn't turning up much of anything. Do any of the nearby English sizes (for which Westwoods are made for) have a good number of tyres available for them? Also: No, I don't know what I'm talking about when I say "Westwood." For all I know, it's "Warwick" or "Wally World." They're just these rims that don't do caliper brakes.