What is the difference between tire sizes?
Car tires come in all kinds of sizes with some tires better suited for certain vehicles than others. Your car manufacturer provides a recommended tire size, but sometimes allows for a slightly different-sized tire for your vehicle.Numbers and LettersToday’s tires are sold with various numbers and letters printed on the sidewalls. This alphanumeric arrangement tells drivers a lot about their tire, helping to differentiate tire sizes.Tire SizeThe first of three elements found on your tire is its tire size. For example, a tire with 255/55R18 on the side represents four things. The first number represents the width of your tire in millimeters, the second number is its aspect ratio or profile, in this example meaning that the sidewall section height is 55 percent of the tread width, while the third number represents the wheel size. The “R” designation tells you that you’re looking at a radial tire as opposed to “D,” which represents bias-ply.Service DescriptionHaving nothing to do with tire
