how to read tires numbers

A C indicates 6 plies a D indicates 8 plies and an E indicates 10 plies. These are printed in large letters toward the outside of the tire.

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This means that the tires width is 185mm or about 73 inches.

. The width is the distance of the tire from sidewall to sidewall in millimeters. 1 These are some of the most important numbers on any tire as they tell you how big your tires are. The service description although it doesnt appear on every tire is usually right. This number is the tires aspect ratio or its section height compared to its.

The numbers 4318 for instance indicate that the tire was manufactured during the 43rd week of 2018. In the example used above P22565R17 the 65 is the aspect ratio. The two-digit number after the slash mark in a tire size is the aspect ratio. The bigger the aspect ratio the bigger the tires sidewall will be.

Aspect Ratio The next number which comes after the forward slash is the tires aspect ratio. If you do so you might not get the warranty benefits. The higher the ratio is the bigger sidewall the tire will get. Look at the service description.

CAN I PUT LARGER TIRES ON MY CAR. If there is no letter the tire has the standard 4 plies. Learn More at Tire Rack. In example B this reads 285mm.

The aspect ratio of a tire is the height of the cross-section compared to the width. This video will explain how to decipher tire and wheel size tire construction speed rating and load ratingSee http. 245 Section WidthTread mm The section width is the width of the tire from one sidewall to the other measured in millimeters. Everything You Need to Know Is on the Sidewall.

The final two digits indicate the year that your tire was manufactured. Tire dot code 7-12 Character TIN The first two characters stand for plant code which the manufacturer assigns the code for. European-standard tires wont have a prefix letter at all. How to read DOT tire codes on your tire.

Steps Download Article 1. ST is for a special trailer. To convert 285mm to inches you divide 285 by 254 to get 1122. The letter tells us what type of vehicle or service the tire was designed for.

For example if your final four DOT numbers are 3020 your tire was manufactured in the 30th week of 2020. In this case the tire is 245 millimeters at. Tires with the lowest speed ratings are usually listed as A followed by a number for example A1 A2 A3 and so on. Some tires carry W or Y speed ratings.

Now you know how to read tire date codes. Tak from Toyo Tires gives us some. Also never lose your purchase receipt. The final four digits on your DOT number will tell you the tires age.

To simplify the height of the tire is 65 of its width. For a P18575 R17 82S tire the aspect ratio would be 185. There are 254 mm in one inch. Is the ratio of the height of the tires cross-section to its width.

The first two letters or numbers after DOT refer to the manufacturing plant where the tire was produced and the last four numbers indicate the week and year the tire was made. It shows that the. The answer is below. Find the width and aspect ratio.

Manufacturers may also insert Z into the size description in the tire code data between aspect ratio and diameter for these kinds of tires. P This denotes a Passenger or P-metric tire built to US. A letter P indicates that it is intended for passenger cars. The first two numbers of this grouping indicate the week of the year your tire was manufactured.

A typical tire size might read. Reading DOT Tire Numbers. The last letter in a standard tire size indicates the number of layers used in the construction of the tire. So keep the receipts in a safe place and avoid any confusion by checking the DOT code.

So the width of a 285mm tire is 1122. The 65 besides the slash refers to the aspect ratio between the tire height and width. 45 Aspect Ratio Ratio of Sidewall height to width The aspect ratio refers to the height of the sidewall and it is a percentage of the section width. On metric tires the first number is your width of the tire in millimeters.

Ever wondered what tire numbers mean. The next code group is under four characters. Ad Tire Size Explained. This two-digit number is found after the slash symbol in the tire size.

Read the manufacturer and the tire name. Here are other possible prefixes. Heres what that means. T is for temporary usually indicating a spare tire.

Based on the calculation the sidewall is 13975 millimetres 215 65. In this example the tire is 245 millimeters wide. P 20565 R 15 92 H. LT is for a light truck.

Research and Shop at Tire Rack. The first letter s at the beginning of the number sequence is very important and indicates the type of tire it is. The following one or two characters denote the size code of your tire. For example in a size P21565 R15 tire the 65 means that the height is equal to 65 of the tires width.

The first number in this series refers to the tires section width or the distance from sidewall edge to sidewall edge measured in. P P-Metric Example. P 21565R17 98T P-Metric tires are the most common type of tire. Most tire sizes begin with one or more letters -- for example P or LT.

You can simply check at the sidewalls of tires to avoid any further confusion.

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