Originally Posted by Myosmith

I realize that if you run a tire at higher pressure than the manufacturer recommends, you do so at your own risk, but does this mean that it is reasonably safe to run a tire at say 125% of its rated top pressure? Being a clyde I've often run tires 5-10 psi above their rating in order to stay at a roughly 15% drop, but this seems to indicate a lot more leeway than that. I understand that with wide tires running extremely high pressures puts a lot of stress on the rims so that would have to be considered as well.