Version/option can affect your tire size. It should be located on an information placard in your vehicle. In vehicles made after 2005, this placard will be located in the driver's side door. In older vehicles, the placard may be located instead in the rear passenger doorjamb, fuel filler, glove box or center console, or engine compartment. For example, the version/option of a Honda Accord EX V6 is EX V6.
Metric, or tire type, defines the proper use of the tire. For example, a "P" designation means that it is a passenger car tire. An "LT" designation is for a light truck.
Tire width is the width of the tire measured in mm from sidewall to sidewall. This tire width is 215 mm.
Rim diameter is the width in inches or cm of the wheel from one end to the other. The diameter of this wheel is 16 in. Always replace a tire on a rim with another tire of exactly the same rim diameter designation and suffix letters.
Speed rating tells you the maximum service speed for a tire. A speed rating isn't, however, a recommendation to exceed speed limits, and doesn't indicate how well a tire handles or corners. Learn more about tire speed rating.
Aspect ratio is the ratio of the height of the tire's cross-section to its width. On our example, 60 means that the height is equal to 60% of the tire's width.
Construction tells you how the layers of the tire were put together. "R" stands for radial, which means the layers run radially across the tire. "B" stands for bias construction, which means that the layers run diagonally across the tire.
Load index is an assigned number that corresponds with the load-carrying capacity of a tire. Most passenger car tire load indexes range from 75 to 100, but a few carry more. You'll also find the maximum load elsewhere on the tire sidewall, both in lbs and kg. Learn more about tire load index
Goodyear also offers high floatation tires. Your tire size will be included in the width and rim dropdowns.