– Pressure molded on sidewall shows max pressure for max load. Each of my 3 bikes, 6 tires (a pair of Dunlop, a pair of Perilli, a pair of Bridgestone) shows “max load xxx lbs at 42 psi” on the tire sidewall. However, since the bikes are not normally carrying max load, especially the front, 42 psi is not the “recommended” pressure for the “actual” load. Generally, as you increase pressure, you loose traction, and gain gas mileage.
– On the left-rear swing arm of each of my bike, there’s a factory sticker showing tire size and recommended pressure. You probably have it on yours.
– I disagree that a tire would pop when impacted at rated max load pressure; that’s a law suit for the tire mfr. They’re rated to take the max impact at max pressure. In fact, for two-up riding, one of my bikes says to go up to 42 psi rear, another says 41 psi rear, another says stay at 36 psi rear.
– With new cars, during transportation and storage, the tires are “super-inflated” way pass the max pressure on the sidewall to prevent the tire rubber from taking a set (permanent deformation) from sitting around in the same position for a long time.