Originally Posted by
ThermionicScott
Just because the tire
can hold 110 psi, doesn't mean it
needs it.

Just so. Unless your tires are very skinny and you are pretty heavy, you probably don't need that kind of pressure. Frank Berto's tire pressure chart is a useful tool for estimating the tire pressure you need. Not everyone agrees with the specifics, but the general principle seems pretty robust to me: