Car Glossary ›› Aspect Ratio Definition - Tire and Wheel Glossary
The definition for Aspect Ratio from the Tire and Wheel Glossary is below. Select other words from the Tire and Wheel Glossary to see its definition or you can select another car glossary.
The aspect ratio of a tire is a form of measurement for the sidewall. It is the height of a tire, measured from the bead to the edge of the tread, in relation to the section width. It is typically listed as the middle number in the tire size. For example, a tire with a size of P205/50R16 has a section width of 205 millimeters and the sidewall height is 50% of the section width. This is the aspect ratio.
