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:
Non-turbo models
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Safety & Pricing
The new Legacy has yet to be tested by the Insurance Institute for Highway
Safety. Standard safety features for 2010 include six airbags, an electronic
stability system and antilock brakes. Click ...
Examples of the types of accidents in which the SRS side airbag and SRS
curtain airbag will basically not deploy.
1) The vehicle is involved in frontal collision
with another vehicle (moving or stationary).
2) The vehicle is struck from behind.
The SRS side airbag and SRS curtain
airbag are basically not ...
