I'm looking to get 17's and I want to play it safe with 45mm offset. I'd think 42mm would be a risk with 215/40-17. Rolling the rear fender's doesn't appeal to me, but I think I'm going to have to take the risk.

Problem is, I want super lite wheels and the one's that are 45mm offset are really rare. Konig subzero's have it (discount carries them), but I want less than 16.5lbs. So it's either going to be velox pg-5's (12lbs 42mm), RO-JA formula 5's (15lbs 42mm) or SSR competition's (14lbs 42mm).