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

(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:

    SRS side airbag and SRS curtain airbag
    The SRS side airbag is stored in the door side of each front seat seatback, which bears an “SRS AIRBAG” label. In a moderate to severe side impact collision, the SRS side airbag on the impacted s ...

    Driving on snowy and icy roads
    WARNING Do not use the cruise control on slippery roads such as snowy or icy roads. This may cause loss of vehicle control. CAUTION Avoid prolonged continuous driving in snowstorms. Snow will ent ...

    Construction
    The generic name of each cord material used in the plies (both sidewall and tread area) of this tire. For example, “PLIES: TREAD 2 STEEL + 2 POLYESTER SIDEWALL 2 POLYESTER” ...