how to read tire numbers

The three-digit number following the tire class is the tire width. Tak from Toyo Tires gives us some.

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So lets look at how these numbers translate to a real tire.

. In the tire size the first three numbers refer to the width of the tire. The first two digits in this cluster reflect the week of the year in which your tire was made. 33X1250R15 The first. What Do Tire Numbers Mean.

The first two numbers or letters after the DOT indicate the plant where the tire was manufactured. For example the code on a common fitment for Australian cars is. After the slash mark the next number you will see is the tires aspect ratio. It may seem like a bunch of random numbers and letters are on your tire sidewall but they all actually mean something.

It is represented by a two digit or three digit numbers. The next figure needed to read tire size numbers is your tires load index. Understanding the letters and numbers on your tire sidewall can be a bit confusing. This represents the tyres width in millimetres measured from sidewall to sidewall.

The last two digits reflect the year your tire was made. Aspect ratio or profile. Most tire sizes begin with one or more letters -- for example P or LT. These letters and numbers tell you the tire size type of tire and the safety standards.

This alphanumeric code denotes standardized tire sizes inflation manufacture date and other information so lets break it down. It indicates the diameter of the rim or rim height and is measured in inches. It is commonly known as the aspect ratio. The load index tells us how much weight in pounds the tire can support when fully inflated.

The TIN consists of up to 12 numbers and letters to identify the factory location and the week and year the tire was manufactured. 55 refers to the profile of the tyre or the distance between the wheel and the edge of the tyre looking at it from the side. Example 3805 means the tire was produced in the 38 th week of 2005. The following two numbers 55 represent the aspect ratio or measurement of the sidewall height in mm.

16 Rim Diameter - It is the inside diameter of the tyre. UTQG Stands for Uniform Tire Quality Grading a rating system developed by the US. The first two numbers of this grouping indicate the week of the year your tire was manufactured. Tire service type ratings.

To read a tire look for the width and aspect ratio which is a series of numbers and letters that looks something like 22550R17 The first 3 numbers are the width of your tire tread and the second 2 numbers are the thread-width percentage. Read on to learn how to crack the tire code with this handy guide dedicated to tire types sizes and construction. For example if your tires last four DOT numbers are 3020 it was made in the 30th week of 2020. The last four digits of your DOT number will tell you how old the tire is.

For example if your final four DOT numbers are 3020 your tire was manufactured in the 30th week of 2020. The letters and tire numbers printed on the tire represent model width aspect ratio construction wheel diameter load index and speed rating. Read more about different types of tyre. Department of Transportation to provide consumers with information to help them purchase tires based on their relative treadwear traction and temperature capabilities.

The final two digits indicate the year that your tire was manufactured. It is called the load index because the figure doesnt tell us the precise number of pounds the tire can support at least not by itself. 13 rows How to read tire size in inches is very straight forward. The tire size P22545R17 91V may not mean much to the average person but to tire geeks like us it speaks volumes.

Reading Your Tire Size Metric Tire Class P. 13 Brand name and registered trademark. How to Read a Tire Size Understanding a Tire Sidewall - ABTL Auto Extras. So the profile of our example tyre is 55 of 205mm or 11275mm.

The next number in the sequence is 225. The width is the distance of the tire from sidewall to sidewall in millimeters. This number also increases in increments of 5. The next four numbers indicate the date the tire was built ie the number 1210 indicates that the tire.

Many years ago the tire industry established a set of standards for the information thats embossed on the sidewall of tires. Includes the serial for the tire and the last 3 or 4 numbers represent the date. This means that the tires width is 185mm or about 73 inches. Whether theyre radial as well as their load-carrying capacity and speed rating.

Your tires can tell you a lot if you know how to read what they have to say. Then we have the aspect ratio this number represents the. Serves to indicate that the tire conforms to the regulations issued by the US Department of Transportation. You can find more information in our full guide to tire age here.

His simple explanation addresses all the different specifications that are written on your vehicles tire. As an example if your tire size is P22565R17 the width of the tire would be 225 millimeters. We will teach you how to read your tires below. Tire Identification Number The letters DOT preceding the number indicate that the tire meets all Federal standards as regulated by the Department of Transportation.

For example if the load index. This tire doesnt list P or LT so its a passenger tire. How To Read Your Tires. For a P18575 R17 82S tire the aspect ratio would be 185.

The 265 means the width is 265 millimeters or 104 inches wide. 205 indicates the normal section width of the tyre in millimetres 205mm. The first number in this series refers to the tires section width or the distance from sidewall edge to sidewall edge measured in millimeters up and over the tires tread. The number is the percentage of the width of the tyre.

For a better understanding lets take the series P21565R15 95H as a reference. The sidewall code provides information on tyre size and construction eg. 87 Load Index - It is the maximum weight limit that a tyre can carry. Tak from Toyo Tires gives us some insight on how to read a tire size.