Tire Width The tire width is measured from sidewall to sidewall of the tire. It is represented by a three digit number and measured in millimeters. In our example above, the width is 185mm. Aspect Ratio Aspect ratio is the ratio of the height of the tire's cross-section to its width.
The aspect ratio, or profile, refers to the height of the sidewall as a % of the section width. In our example, 55 means the height is equal to 55% of the 195mm width. The bigger the aspect ratio, the bigger the sidewall will be.
A "C" indicates 6 plies, a "D" indicates 8 plies, and an "E" indicates 10 plies. The higher the number of plies in a tire, the stronger the tire is and the more air pressure the tire can safely hold. Higher ply tires require more air pressure to maintain proper wear.
Tire Size Meanings 1. Tire Type. Most car tires have the letter "P" at the front of the tire size. This letter signifies that it is a 2. Tire Width. The tire is measured by its width. This measurement is given in millimeters, based on how much room there 3. Aspect Ratio. After the slash mark,
Finding your tire size is not difficult, you just need to know where to look! In today's article I'll explain tire sizes, how to find yours, what the numbers on a tire mean, and how to shop for and buy tires that will fit your car or truck. Let's start with the basics.
It is indicated by a letter of the alphabet, which refers to a table that is common to all manufacturers. Each letter corresponds to a certain maximum speed. It starts from letter "A", the only one which is broken down with numbers (A1, A2, A3, etc.) and which allows speeds of between 5 to 40 km/h.
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what does the size mean on a tire
