Does tire pressure change with bigger tires?
Does tire pressure change with bigger tires? The thing that does not change is how many cubic feet of air can safely carry a certain amount of weight. The thing that does change when installing bigger tires is obviously the size of the container holding that air. Therefore, a larger tire needs less pressure than a smaller tire to carry the same vehicle weight. How much over tire pressure is too high? Higher pressure generally is not dangerous, as long as you stay well below the “maximum inflation pressure.” That number is listed on each sidewall, and is much higher...