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Tire Sizing Chart
P = Passenger car tire size based on U.S. design standards
؆....blank....؆ = Passenger car tire based on European design standards
LT = Light Truck tire based on U.S. design standards
T = Temporary Spare tire
31 = Overall Diameter in Inches (in)
215 = Section Width in Millimeters (mm)
65 = Aspect Ratio in Percent (%)
—Ratio of section height to section width of tire.
10.5 = Section Width in Inches (in)
R = Construction Code
—ЉRЉ means Radial Construction.
—ЉDЉ means Diagonal or Bias Construction.
15 = Rim Diameter in Inches (in)
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