Will a 245 tire fit on a 255 tire?

A 245 tire will not fit directly on a 255 tire, as the numbers indicate different widths. The first number represents the tire's width in millimeters, so a 255 tire is 10 millimeters wider than a 245 tire. However, you can mount a 245 tire on a wheel that accommodates a 255 tire, but the overall performance and handling may be affected. Always consult your vehicle's specifications and a tire professional for the best fit and safety.