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:
Certification for the Hands-free system
NOTE
● This device complies with Part 15 of the FCC Rules and with RSS-Gen of IC Rules.
Operation is subject to the following two conditions: (1) This device may not cause
harmful interfere ...
Gross Vehicle Weight (GVW) and Gross Vehicle Weight Rating (GVWR)
Gross Vehicle Weight
The Gross Vehicle Weight (GVW) must never exceed the Gross Vehicle Weight Rating
(GVWR).
Gross Vehicle Weight (GVW) is the combined total of the weight of the vehicle,
dri ...
Mirrors
Always check that the inside and outside mirrors are properly adjusted before you start driving. ...
