60psi front and back on mine. Tires are rated at 51 btw. Standard 14" dunlop sp 20 FEs.

You are more likely to blow a tire with too low pressure than too high. I don't recomend going as high as I do unless your a fanatic, but the likelyhood of it blowing is less than someone running a tire at 10psi below recomended.

I've hit many a potholes without it blowing btw.

My hydroponics experiment

You ever notice how hard it is to lip read cartoon characters?
"Crazy is what the sane call Delta Flyer"