Originally Posted by
SpedFast
It would drive me nuts! My favorite road bike has such close tolerances between frame and tire that 2mm would cause rubbing. I know I know, my tires are too big. They're only 28s. Bike was designed for 23s. I'm not a Trek fan to begin with, so I'd be taking it back and telling them I couldn't live with their QC standards. You do what works for you.
Nobody knows if its supposed to be like that or not, we aren't the engineers. I returned the bike either way, but many trek alu frames I've seen show this. Even my domane, which trek told me its within tolerances and the stays aren't always dead on. So for the people gawking at 2mm's go check your bikes. Especially if its a Trek.