12+ Aspect Ratio Tire Size Meaning US

12+ Aspect Ratio Tire Size Meaning US. The aspect ratio is a percentage. If the aspect ratio of a tyre is higher, then the side wall will be clearly taller.

Tire Size Explained What The Numbers Mean Les Schwab from www.lesschwab.com

So, 40% of 225 is 90, making this a 90mm sidewall. An alphanumeric designation such as mt90 17, represents the same tire size as 130/90 17. Tire sizes are defined by specifications such as the type, width, aspect ratio, speed rating, tire construction type, and service description.

In the case of our two examples the aspect ratio numbers are 90 and 80 respectively.

This second number is that percent. Research and shop at tire rack. The aspect ratio is often referred to as the tire's series.. How does tyre aspect ratio matter?

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I know in 155/80r13, '155' is the tread width in mm, '80' the aspect ratio and '13' the wheel size in inch.

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How does tyre aspect ratio matter?

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M means the tire is for motorcycle use, t is the tire width code, 90 is the aspect ratio and 17 is the rim diameter.

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Example of tire size specifications

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A tire's aspect ratio determines the height of the sidewall, which ultimately determines the overall diameter of the tire.

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But how come sometimes the aspect ratio is omitted?

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But how come sometimes the aspect ratio is omitted?

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This percentage represents the ratio of the sidewall's section height to the tire's section width.

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In the example below, the aspect ratio of the tire is 70 percent, so the section height of tire will be 129.5mm.