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:
Examples of the types of accidents in which it is possible that the SRS side
airbag and the SRS curtain airbag will deploy.
1) Hitting a curb, edge of pavement or hard
surface
2) Falling into or jumping over a deep hole
3) Landing hard or vehicle falling
It is possible that the SRS side and curtain
airbags will ...
Uniform tire quality grading standards
This information indicates the relative performance of passenger car tires in
the area of treadwear, traction, and temperature resistance. This is to aid the
consumer in making an informed choice ...
Ride & Handling
There's no question you're going to feel the road when driving the Impreza
2.5GT, but while the sport suspension always lets you know when you've driven
over a large bump in the road, the impact f ...
