Most folks seem to be going to either 225/45-17 front (the stock size) & 255/40-17 rear or 235/45-17 front & 265/40-17 rear. Both apparently work well. As soon as I can wear the tread off my Dunlop 8080s, I'm planning to go with Bridgestone S-02 Pole Positions with 225/45 front and 255/40 rear.