Changing Aspect Ratio

…decreases. The contact patch of the tire changes shape by becoming shorter and wider. While the shape changes, the size (area) of the contact patch remains relatively unchanged. * High aspect ratio = tall and narrow contact patch * Short aspect ratio = short and wide contact patch What does this…

…pair of numbers (225/ 45R17) is the tire's aspect ratio or profile. This percentage represents the ratio of the sidewall's section height to the tire's section width. The section height can be calculated by multiplying the section width by the aspect ratio percentage. The answer will be the height…

…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…

…appearance with a passenger tire's smooth, quiet ride. Standard Touring tires are typically available in the lower speed ratings and higher aspect ratio sizes and place more emphasis on ride comfort and treadwear than Grand Touring tires. Advanced Sorting Clear Apply weighting to categories…

…will be branded light load, and identified by an LL in their descriptions, as in P285/35R-19 LL. Note: Only P-metric sized tires with 45-series aspect ratios or lower may be manufactured in a light load configuration. Light load tires are designed to carry less weight than standard load tires and…

…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…

…P225/60R15 6.5" P225/55R15 7.0" P225/50R15 7.0" P225/45R17 7.5" P225/40R18 8.0" The assigned measuring rim width changes with the tire size's section width and with the tire size's aspect ratio. As tire section width increases, the measuring rim width increases proportionately in 1/2" increments.…

…appearance with a passenger tire's smooth, quiet ride. Standard Touring tires are typically available in the lower speed ratings and higher aspect ratio sizes and place more emphasis on ride comfort and treadwear than Grand Touring tires. Advanced Sorting Clear Apply weighting to categories…

…appearance with a passenger tire's smooth, quiet ride. Standard Touring tires are typically available in the lower speed ratings and higher aspect ratio sizes and place more emphasis on ride comfort and treadwear than Grand Touring tires. Advanced Sorting Clear Apply weighting to categories…

…appearance with a passenger tire's smooth, quiet ride. Standard Touring tires are typically available in the lower speed ratings and higher aspect ratio sizes and place more emphasis on ride comfort and treadwear than Grand Touring tires. Advanced Sorting Clear Apply weighting to categories…

…installers in your area. All of the pricing for mounting and balancing is based on the tire's aspect ratio, which is the middle number of the tire size. If your tire size is 205/55R16, your aspect ratio is 55. Therefore, you would look at the pricing line for "50-55 Series" tires. If…

…appearance with a passenger tire's smooth, quiet ride. Standard Touring tires are typically available in the lower speed ratings and higher aspect ratio sizes and place more emphasis on ride comfort and treadwear than Grand Touring tires. Advanced Sorting Clear Apply weighting to categories…

…appearance with a passenger tire's smooth, quiet ride. Standard Touring tires are typically available in the lower speed ratings and higher aspect ratio sizes and place more emphasis on ride comfort and treadwear than Grand Touring tires. Advanced Sorting Clear Apply weighting to categories…