18's are the best all around size Imo from what I've seen and with roads getting worse before they get better the more rubber you keep between the wheel and pavement the better off your gonna be. I think 19's look great if you can afford the tires and don't mind sacrificing a little ride quality. Ill be picking up a square set of the 710's at some point when I have the cash...possibly next summer price on them really isn't all that bad either...probably going to be close to 1200 including tires when its all said and done.
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