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:
Trailer towing tips
CAUTION
● Never exceed 45 mph (72 km/h) when towing a trailer in hilly country on hot
days.
● When towing a trailer, steering, stability, stopping distance and braking performance
wi ...
Tire care – maintenance and safety practices
• Check on a daily basis that the tires are free from serious damage, nails, and stones. At the same time, check the tires for abnormal wear.
• Inspect the tire tread regularly and replace the tires ...
To select a track from its beginning
Turn the “TUNE/TRACK/CH” dial clockwise
to skip to the beginning of the next
track/file. Each time the dial is turned, the
indicated track/file number will increase.
Turn the “TUNE/TRACK/CH” ...
