Some riders inflate to the highest pressure they think their tires will take with the idea in mind that rock hard rolls faster. Maybe on very smooth pavement. I ride on a variety of surfaces...the more scenic the route often the more sucky the surface. Hard tires tend to bounce on poor surfaces and as every skiier knows, airborne time is slower than connected to the surface time. Rock hard also doesn't grip so well. And on long rides, rock hard takes a little toll on the body. My experience is that is, overall, more prone to flats.
I prefer moderate pressures as a compromise for shock absorbing, comfort, grip, rolling ease, etc.
I weigh in the 160's, ride 25's, and put 95 in back, 90 in front. Works for me.
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..... "I renewed my youth, to outward appearance, by mounting a bicycle for the first time." Mark Twain, Speeches
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