I've got the Metzeler M3's, 120/70 on the front, and the E rated 190/55 on the rear. I'm keeping 38 psi in both front and rear, and they are working great, they stick really well even before they were broke in they did well. the taller Tire makes it turn in a little quicker, but its hard to tell how much was from the tire, and how much was from my new exhaust, since i did both at the same time. most of the time its around 80 degrees here, I live in MN, so what works great for me might not for someone else.