Aspect Ratio

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Aspect Ratio
Related Categories: Tire Size Substitution | Tire Comparison Chart | Size Calculator | Sidewall Height | Rim Width Tire Size | Trailer Tire Size Chart | Diameter Chart | Temporary Spare Size | Lt Flotation | Rating Chart
  • How big is your contact patch?

  • …Not that big considering the weight and movement that those contact patches must support. Contact patches are dependent on a tire’s aspect ratio (profile) -- low profile or high profile. For example, low profile tires (at left) have a short and wide contact patch that translates to very…

  • Tire Size Conversion Chart

  • …N * When replacing Alpha Numeric tires with Euro-metric or P-metric tires, look for the Euro-metric or P-metric size listed in the equivalent aspect ratio. For example, when replacing a FR78-14, you would look up the appropriate 75-series size, the 205/75R14. If replacing a FR70-14, you would look…

  • Plus 1 Plus 2 Equals What?

  • …section width (first number in the size) while decreasing the aspect ratio (second number in the size). The wheel size stays the same so you will not have to purchase new wheels. Plus 1 - Increase the section width while decreasing aspect ratio but also increase the wheel size by 1 inch. The result…


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