Originally Posted by
noglider
[MENTION=384662]bmthom.gis[/MENTION], many people have found that they are overinflating their tires. The sidewall rating is higher than necessary for most people. See
this article. Note that the weights in the lookup chart are per wheel, not per bicycle.
With just my own experience, I find a pretty good ride keeping at least the rear within the recommended sidewall readings. I kept my rear a little squishy for the century I just did in the rain, about 90 (this is the 28s) and managed a pinch flat and sidewall damage as I swerved around a pot hole and awkwardly hit some rumble strips (though I did stay upright!)
Even my 32s on my commuter I don't go lower than 85 for the front. It just feels a little too squishy to me. Of course, I'm usually hauling around clothes and food and such as well, so the added weight makes me want to keep the PSI up.