Originally Posted by
indybiker01
Explain the tire psi to me..i am 205 (ex rugby player)......the tire psi range is 95-145....why would i not want 145 psi?
Short answer, tire pressure is primarily determined by rider weight and terrain type. The right pressure will give a comfortable ride and give you the best (least) rolling resistance. Too much pressure will deform the tire and increase rolling resistance; too little will do the same as well.
Link below is a really good explanation.
http://www.sheldonbrown.com/tires.html