Well, most big manufacturers hold such tolerances to 2 mm. One-eighth of an inch is nearly 3 mm., which to me makes it replaceable under warranty. But you've already asked the key question: does it matter? The answer comes from riding it. If it tracks straight with no hands, maybe you don't need to worry about it. But there is a caveat: if the wheels don't track straight, it's going to create some extra friction, which will rob you of some speed. This may or may not be detectable, but if it's the sort of thing you'd worry about, then...
Last edited by Six jours; 02-11-12 at 12:42 AM.