P Metric
With the P-Metric system, Section Width is measured in millimeters.
To convert millimeters into inches, divide by 25.4. The Aspect Ratio (Section Height divided by Section Width) helps provide more dimensional information about the tire size.
Example:

(1) P = Certain tire type used on light duty vehicles such as passenger cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height 7 section width).
(4) R = Radial Construction
(5) Rim diameter in inches
See also:
Summer tires
Summer tires are high-speed capability tires best suited for highway driving under dry conditions.
Summer tires are inadequate for driving on slippery roads such as on snowcovered or icy roads.
If y ...
Other markings
The following makings are also placed on the sidewall.
Maximum permissible inflation pressure
The maximum cold inflation pressure to which this tire may be inflated. For example,
“350 kPa (51 PSI) ...
Seek tuning (SEEK)
Type A and B audio
Type C audio
If you press the “” or “”
side of the “SEEK” button briefly, the radio will automatically search for a receivable station and stop at the first one it finds. This f ...
