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A. P: Indicates a tire, designated by
the Tire and Rim Association (T&RA),
that may be used for service on cars,
SUVs, minivans and light trucks. Note:
If your tire size does not begin with a
letter this may mean it is designated
by either ETRTO (European Tire and
Rim Technical Organization) or
JATMA (Japan Tire Manufacturing
Association).
B. 215: Indicates the nominal width of
the tire in millimeters from sidewall
edge to sidewall edge. In general, the
larger the number, the wider the tire.
C. 65: Indicates the aspect ratio which
gives the tire's ratio of height to width.
D. R: Indicates a radial type tire.
E. 15: Indicates the wheel or rim
diameter in inches. If you change your
wheel size, you will have to purchase
new tires to match the new wheel
diameter.
F. 95: Indicates the tire's load index.
It is an index that relates to how much
weight a tire can carry. You may find
this information in your owner’s
manual. If not, contact a local tire
dealer.
Note: You may not find this
information on all tires because it is not
required by federal law.
G. H: Indicates the tire's speed rating.
The speed rating denotes the speed
at which a tire is designed to be driven
for extended periods of time under a
standard condition of load and
inflation pressure. The tires on your
vehicle may operate at different
conditions for load and inflation
pressure. These speed ratings may
need to be adjusted for the difference
in conditions. The ratings range from
81 mph (130 km/h) to 186 mph (299
km/h). These ratings are listed in the
following chart.
Note: You may not find this
information on all tires because it is not
required by federal law.
Speed rating - mph
(km/h)
Letter
rating
81 mph (130 km/h)M
87 mph (140 km/h)N
99 mph (159 km/h)Q
106 mph (171 km/h)R
112 mph (180 km/h)S
118 mph (190 km/h)T
124 mph (200 km/h)U
130 mph (210 km/h)H
149 mph (240 km/h)V
318
Wheels and Tires
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