Perhaps someone can explain to me why a tire has to be inflated to max pressure? Every rider has a different weight. Isn't it more important that you consider the deflection of the tire when you sit on the bike? Fill it until there is little deflection.

Why would a 100 lb. rider need the same air pressure as a 200 lb. rider? Obviously the 200 lber is going to need more pressure than the lighter rider to achieve the same results.