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9-39
09
Tire Sidewall Labeling
This information identifies and
describes the fundamental
characteristics of the tire and also
provides the tire identification
number (TIN) for safety standard
certification. The TIN can be used to
identify the tire in case of a recall.
ORS093077L
1. Manufacturer or brand name
Manufacturer or brand name is
shown.
2. Tire size designation
A tire’s sidewall is marked with a
tire size designation. You will need
this information when selecting
replacement tires for your car.
The following explains what the
letters and numbers in the tire size
designation mean.
Example tire size designation:
(These numbers are provided as
an example only; your tire size
designator could vary depending on
your vehicle.)
245/45R20 103V
245 - Tire width in millimeters.
45 - Aspect ratio. The tire’s section
height as a percentage of its
width.
R - Tire construction code (Radial).
20 - Rim diameter in inches.
103 - Load Index, a numerical code
associated with the maximum
load the tire can carry.
V - Speed Rating Symbol. See
the speed rating chart in
this section for additional
information.
Wheel size designation
Wheels are also marked with
important information that you need
if you ever have to replace one. The
following explains what the letters
and numbers in the wheel size
designation mean.
Example wheel size designation:
8.5J X 20
8.5 - Rim width in inches.
J - Rim contour designation.
20 - Rim diameter in inches.
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