I agree with Mel. You need to find a pressure that is good for you. You don't want it to high, cause you'll have a bumpy ride, to low and you'll wear the tire fast. I tend to keep mine right around 30psi. Sometimes I'll be a little more or less, like if I go someplace far with alot of wieght, I'll pump up to like 32. If its snowy or maybe even rainy for a while I might go as low as 25 and 20 in fresh snow, just to help with traction.