The tire size "P225/45R17 91V" may not mean much to the average person, but to tire geeks like us it speaks volumes. Read on to learn how to crack the tire code with this handy guide dedicated to tire types, sizes, and construction.
There’s a lot to learn from the soup of letters and numbers on the sidewall of a tire, but deciphering all of that data takes some explanation. Knowing what the information means, a consumer can decide if a tire is right for their vehicle, driving style, and road conditions.
What do the numbers mean on the sidewall of your tire? At first glance, you look at your tire sidewall and think, “’Do I need a super secret decoder ring to read this?” In addition to the model name of the tire there is a series of numbers that at first, you don’t deem important.
With a little explanation it's easy to understand what all of the letters and numbers mean on your tire's sidewall. The numbers are indicators of the size, type, and performance of the tire. Enter your information to see the tires that fit your vehicle.
A tire's load index is a measurement of how much weight each tire is designed to support. The larger the number, the higher the load capacity. This is one of the most important numbers on your tire.
What Do The Numbers On My Tire Mean? At first glance, you look at the sidewall of your tire and think, “’Do I need a super secret decoder ring to read this?” In addition to the model name of the tire there is a series of numbers that at first, you don’t deem important.
You may see tires without these tire numbers, meaning the tire’s profile is standard – 82%. Also, there are rarely tires with the ratio of three digits, which means it’s in millimeters. If a tire has an aspect ratio of 55 or less, it’s a lowprofile tire, usually used for sport vehicles.
Find the numbers that represent the size of your ATV tire on the side of the tire. You should see three numbers, separated by "X's" dashes or a combination of both. Read the first number. That number represents the diameter of your tire. For example, if the numbers say, "26X1012," the diameter of the tire is 26 inches.
The tire size branded on the sidewall provides a significant amount of information about the tire's intended purpose, dimensions, load capacity and high temperature/high speed durability. Our primary example will be based on variations of the 225/50R16 size, although other sizes will appear...
Tire Width is the width of the tire measured in millimeters from sidewall to sidewall. The first threedigit number in the tire size refers to the tire width. For instance, in a size P215/65 R15 tire, the width is 215 millimeters. Aspect Ratio is the ratio of the height of the tire's crosssection to its width. The twodigit number after the slash mark in a tire size is the aspect ratio.
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