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What do the numbers on a tire represent?

1 Answers

Tommy

07/29/25 5:46pm

Tire specifications are often represented by a set of numbers, such as 205/60-R16. Here’s what each part means: 1. 205 indicates the section width, which is the distance between the two sidewalls. Different tire widths match different rim widths. 2. 60 represents the aspect ratio, which is the percentage of the tire's height relative to its width (tire height ÷ tire width). A smaller number means a flatter tire. 3. 16 denotes the rim diameter, meaning this tire must be matched with a 16-inch rim. The letter "R" stands for radial tire. Below is more information about tire specifications: Tire specifications are commonly expressed with a set of numbers, where the first number indicates the tire's section width, and the latter represents the rim diameter in inches. Some tires also include additional letters or symbols with special meanings: "X" indicates a high-pressure tire; "C" stands for reinforced; "B" denotes a bias-ply tire; and "-" signifies a low-pressure tire. The letters M and S are abbreviations for Mud and Snow, respectively, indicating that the tire is suitable for use on snowy and muddy roads. 2. Certain tires have arrows or the word OUTER-SIDE marked on the sidewall, indicating the tire's rotation direction. If a small umbrella symbol is depicted on the sidewall, it means the tire is suitable for driving in rainy or slippery conditions.

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What is the suitable tire pressure for a new car?

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