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Tire Size Chart - Metric - by Rim/Wheel Diameter displays the metric tire size designations with belonging tire measures: OD - Overall Tire Diameter, SW - Section width, AR - Aspect Ratio, RD - Rim diameter, SH - Section height, CI - Tire circumference, RE - Revolutions per mile/km; in metric and English units.. Metric tire size designations are grouped by a rim diameter - there is one chart ...
A tire conversion chart for all tire sizes. Listed by wheel size and tire diameter, our tire conversion chart has all your tire size conversion answers.
Alpha numeric tire sizes were introduced as Original Equipment in the late 60s and became widely used in the early 70s. These tires were identified with a letter which indicated the tire's load capacity, followed by an "R" if radial ply construction, the tire's aspect ratio and wheel diameter.
Alpha numeric tire sizes were introduced as original equipment in the late 60's and became widely used in the early 70's. These tires were identified with a letter which indicated the tire's load capacity, followed by a "R" if radial ply construction, the tire's aspect ratio and wheel diameter.
Tire Size Rim Width Range (inches) Section width on rim width* Overall Diameter 14" Diameter Tires P225/40R18 7.5 - 9.0 9.0 on 8.0 25 P245/40R18 8.0 - 9.5 9.7 on 8.5 25.7
Vintage Tire Size Conversion Chart. Use the following chart to figure out the closest modern tire size to your car's original tires. Keep in mind these are close approximations and may not be exact replacements.
The traditional sizing systems are based on a measurement of the outside diameter of a tire. This would usually be measured in inches (26", 27", etc.) or millimeters (650, 700, etc.).
Verify tire specifications and dimensions of tires by viewing the SPECS page of tires you are interested in. While this chart can't guarantee a specific tire will fit your vehicle, it can give you an idea of the available tire sizes with the same approximate overall diameter.
The bolt pattern (also known as the P.C.D. or Pitch Circle Diameter) of a vehicle can be referenced in either standard or metric, and usually the year and kind of vehicle dictates how the bolt pattern is referenced.
Automobile tires are described by an alphanumeric tire code (in American English and Canadian English) or tyre code (in British English, Australian English and others), which is generally molded (or moulded) into the sidewall of the tire. This code specifies the dimensions of the tire, and some of its key limitations, such as load-bearing ability, and maximum speed.