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How Much Taller Is a 70 vs 65 Tire? Tire Aspect Ratio Explained

Learn the height difference between a 70 and 65 tire due to aspect ratios and how it affects ride quality and handling.

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Video transcript

The height difference between a 70 and a 65 tire comes from their aspect ratios. A 70 tire has a sidewall height that's 70% of its width, while a 65 tire has a sidewall height of 65% of its width. This typically results in the 70 tire being slightly taller, contributing to a smoother ride and better handling in rough conditions.

Questions and answers

  1. What does the tire aspect ratio number mean?

    The tire aspect ratio is the height of the tire's sidewall expressed as a percentage of its width. For example, a 70 aspect ratio means the sidewall height is 70% of the tire's width.

  2. How does a higher aspect ratio affect driving?

    A higher aspect ratio tire, like a 70, generally has a taller sidewall, which can provide a smoother ride and better handling on rough roads due to increased cushioning.

  3. Will switching from a 65 to a 70 tire affect my vehicle’s speedometer?

    Yes, since a 70 tire is slightly taller than a 65 tire, it can cause your speedometer to read slightly slower than your actual speed.

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For more insights on tire sizes and their effects on vehicle performance, check out our detailed guides on tire width comparisons and how to choose the right tires for your car.