Originally Posted by
tarwheel
I am curious about the Conti GP 4 Season widths as well in size 700 x 28. I've got 25s in Conti GP 4000s and they are about 24 mm wide. I've also got some Michelin Pro2Race 25s and they measure 27-28 mm wide. However, the volume seems about the same on both tires because the Contis are taller. The Michelins measure a true 25 mm in height (from rim to outside diameter), and I suspect the Conti 25s measure about 26-27 in height. I know the Contis are taller because their diameter is larger when I measured it using the "roll out method" for calibrating my bike computer.
If the Michelins are wider, but the Contis taller, would that mean that both tires give the same amount of cushion? I never thought about tire height, only widths. I'm not into racing, I just need a cushiony (word?) tire. I'm 135 lbs, and run both front and backs at 90 psi.