Tire Sizes
Tires And Tyres
  Calculate your tire size from Tire 1 to Tire 2 using the tire size calculator. See the main causes of tire wear & un-even tire wear. Plus useful information on tire specifications.    

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Tires And TyresTires And Tyres - Tires-and-Tyres.Com is a great resource to look around the various areas of tires. You'll find lots of great quality tires from lots of manufacturers, international & UK tires, tire ratings, cheap tires, tire accessories, tire rims and a load more!


Calculate your tire size from Tire 1 to Tire 2 using the tire size calculator. See the main causes of tire wear & un-even tire wear. Plus useful information on tire specifications.

 

Tire Sizes Title

Taken from cheneytire.com
Passenger Tire Sizes

Most passenger vehicles come equipped with P-Metric and Euro-Metric tire sizes. It is important to understand these sizing systems in selecting the proper tire for your vehicles.

Here is a brief review of the tire sizing systems with a breakdown of their individual elements.

P Metric

With the P-Metric system, Section Width is measured in millimeters. To convert millimeters into inches, divide by 25.4.

The Aspect Ratio (Section Height divided by Section Width) helps to provide more dimensional information about the tire size.

Aspect ratio is expressed as a percentage (75%, 70%, 60%) and is commonly referred to as the tire series (75, 70, 60 series). Lower aspect ratio tires tend to look shorter and wider.

From the examples below, you can determine each tire's Section Width (7.28/8.07") and Section Height (5.46/4.84").

P18570R14
P = Passenger Car Tire

185 = Section Width (in millimeters)
(Conversion: 185 mm ÷25.4 = 7.28")

70 = Aspect Ratio
(Conversion: 7.28" X .70 = 5.10" Section Height)

R = Radial Construction (B-bias, D-diagonal)

14 = Rim diameter in inches.

205/60R15
205 = Section Width in millimeters
(Conversion: 205 mm ÷25.4 = 8.07")

60 = Aspect Ratio
(Conversion: 8.07" X .60 = 4.84" Section Height)

R = Radial Construction

15 = Rim diameter in inches.


 


Tire Size Calculator - There are lots of websites that have a Tire Size Calculator. Some can compare two tires at a time. You'll find links to various websites that contain tire size calculators to help you out. See what happens to your speedometer when you change tire size etc.

Tire Wear - Tire Wear problems & how to reduce the chances. Tire wear patterns, such as scuffing, cupping & outside shoulder wear, often indicates a larger problem with the vehicle's chassis components says Terry Hawkins, alignment specialist.

Tire Specifications - There's a lot of useful information molded into the sidewall of a tire. It shows the name of the tire, its size, whether it is tubeless and more!


The most relevant links we could find, placed here free

W-Body - Tire-Sizes - A chart of various tire sizes that might fit on our cars. www.w-body.com