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13-2
Consumer information and Reporting safety defects
For U.S.A.
The following information has been com-
piled according to Code of Federal Regu-
lations “Title 49, Part 575”.
Tire information
Consumer information and Reporting safety defects
Tire labeling
Many markings (e.g. Tire size, Tire
Identification Number or TIN) are
placed on the sidewall of a tire by tire
manufacturers. These marking can
provide you with useful information on
the tire.
Tire size
Your vehicle comes equipped with P-
Metric tire size. It is important to un-
derstand the sizing system in select-
ing the proper tire for your vehicles.
Here is a brief review of the tire sizing
system with a breakdown of its indi-
vidual elements.
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 infor-
mation about the tire size.
Example:
P
205 / 55 R 16
(1)
(2)
(3)
(4)
(1) P = Certain tire type used on light
duty vehicles such as passenger cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height
section width).
(4) R = Radial Construction
(5) Rim diameter in inches
Load and Speed Rating Descrip-
tions
The load and speed rating descrip-
tions will appear following the size
designation.
They provide two important facts
about the tire. First, the number des-
ignation is its load index. Second, the
letter designation indicates the tire’s
speed rating.
Example:
P
205 / 55 R 16 89 V
Size designation
(6) Load Index: A numerical code
(5)
(6) (7)
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