I am over 200, ride and like both (Michelins and Contis), and although the smooth ride edge goes to 25's, I feel faster - downhill and accelerating - on 23's. Psychological? Perhaps, but my bikes do a good job of smoothing the rough edges. Just make sure that you are at max inflation on the rear, especially if you live in an area where the roads are less than optimal. I run a little over max in rear (125-130) and in the front I run at/a little lower than max, between 110 and 120 (120 listed max).