The highest amount of air pressure a tire can safely contain is indicated on the tire’s sidewall. This value, expressed in pounds per square inch (PSI), represents the upper limit determined by the tire manufacturer during testing. Exceeding this rating can lead to tire failure and potential hazards. For instance, a tire might display a marking stating “Max. Press. 44 PSI,” indicating the highest allowable pressure.
Adhering to the pressure limit protects the structural integrity of the tire. Overinflation beyond this point can diminish the tire’s ability to absorb impacts, leading to a harsh ride and increasing the risk of blowouts. Historically, understanding this limitation has been crucial for maintaining vehicle safety, especially as tire technology and vehicle performance capabilities have advanced.