it says 65 PSI on the tire. My gauge read slightly less than 60 when the tube exploded. I think the tire bead had just started to poke out over the rim a bit when it happened.

The bike is a Schwinn Breeze. The tire is a Kenda 26 x 1 3/8 – 1 1/4. The tube was a Goodyear heavy duty 26 x 1 3/8. The pump is a Blackburn telescoping frame pump with gauge.