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:
Volume control
Volume control
You can adjust the phone call volume, the voice volume and the voice guidance volume. Refer to “Volume control buttons”. ...
Reliability, Safety & Features
The prior Outback had above-average reliability, but the new one hasn't been
on the market long enough to gauge. In crash tests by the Insurance Institute
for Highway Safety, the Outback received ...
Driving tips
Do not drive with your foot resting on the clutch pedal and do not use the clutch
to hold your vehicle at a standstill on an upgrade. Either of those actions may
cause clutch damage.
Do not drive ...
