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:
Air conditioner compressor shut-off when engine is heavily loaded
To improve acceleration and gas mileage, the air conditioner compressor is designed
to temporarily shut off during air conditioner operation whenever the accelerator
is fully depressed such as dur ...
Vehicle identification
1) Emission control label
2) Vehicle identification number
3) Certification and bar code label
4) Tire inflation pressure label
5) Vehicle identification number plate
6) Model number label
7) ...
Total trailer weight
Total trailer weight
The total trailer weight (trailer weight plus its cargo load) must never exceed
the maximum weight.
Legacy
The total trailer weight must not exceed 1,000 lbs (453 kg).
Out ...
