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What Does 55 Mean in Tire Size?

When you buy a new car, you might wonder what does 55 mean in tire size. Tire size is usually measured in millimeters, from sidewall to sidewall. You can also look for a letter (R) after the number. “R” stands for radial construction. The second number is the diameter of the wheel. In general, the greater the number, the bigger the wheel is. However, if you need a new tire for your car, you may want to go for a higher number.

The aspect ratio is the proportion between the height and width of a tire. So, if your tire size is 55, you will need a tire with a height of 112 millimeters. The aspect ratio of a tire is defined by the percentage that the width is in relation to its height. This is an important factor to consider when choosing a tire. Make sure that you get the right size for your vehicle, or it could compromise your safety.

The first number in tire size is the width, which varies by vehicle and wheel. In inches, 225 millimeters is equal to 8.86 inches. In addition, the two-digit number that follows the width tells you the aspect ratio of the tire. This is also known as the tire profile measurement. For instance, a tire with a smaller 55 is considered to be narrower and more aggressive than one with a larger 55.

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