Tire Definitions

Rim
The linear distance between the flanges of the rim.

Section Height
Half difference between the overall diameter & the nominal rim diameter.

Nominal Section Width
The section width of an inflated tire mounted on its theoretical rim & indicated in the tire size designation.

Section Width
The linear distance between the outsides of the sidewalls of an inflated tire exluding elevations due to labelling (marking), decorations, or protective bands or ribs.

Nominal Rim Diameter
Is a size code figure for reference purposes only, as indicated in the tire & rim size designation.

Overall Diameter
The diameter of an inflated tire at the outermost surface of the tread.

Overall Width
The linear distance between the outsides of the sidewalls of an inflated tire including elevations due to labelling (marking), decorations, or protective bands or ribs.
 
Avon tires Dunlop tires Goodyear tires Michelin tires Uniroyal tires
BF Goodrich tires Firestone tires Hankook tires Pirelli tires Yokohama tires
Bridgestone tires Fuzion tires Hoosier tires Sumitomo tires Discount tires
Continental tires General tires Kumho tires Toyo tires Wheels