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What Does 85 Mean on a Tire? Understanding Tire Aspect Ratio Explained

Learn what the number 85 means on a tire and how the aspect ratio affects tire performance, handling, and comfort.

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Video transcript

The 85 on a tire indicates the aspect ratio, which is the height of the tire's cross-section to its width. An aspect ratio of 85 means the height is 85% of the tire's width. This information helps determine a tire's performance attributes, including handling and comfort.

Questions and answers

  1. What does the aspect ratio number on a tire mean?

    The aspect ratio is the height of the tire's cross-section expressed as a percentage of its width. For example, an aspect ratio of 85 means the tire's height is 85% of its width.

  2. How does the tire aspect ratio affect vehicle performance?

    A higher aspect ratio usually provides a more comfortable ride with better shock absorption, while a lower aspect ratio can improve handling and cornering stability.

  3. Where can I find the aspect ratio on my tire?

    The aspect ratio is typically the middle number found on the tire sidewall size designation, such as 85 in a size reading like 225/85R16.

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For more insights on tire specifications and how to choose the right tires for your vehicle, check out our detailed guides on tire size codes, tread patterns, and tire maintenance tips.