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Black plate (486,1)
H
“H” is the speed rating. The speed rating denotes the maximum speed for which the use of
the tire is rated.
Letter Rating Speed Rating
Q 99 mph
R 106 mph
S 112 mph
T 118 mph
U 124 mph
H 130 mph
V 149 mph
W 168
*
mph
Y 186
*
mph
*
For tires with a maximum speed capability over 149 mph, tire manufacturers sometimes use the letters ZR. For
tires with a maximum speed capability over 186 mph, tire manufacturers always use the letters ZR.
M S or M/S: Mud and Snow
AT: All Terrain.
AS: Al l Season. The “M
S” or “M/S” indicates that the tire has some functional use in
mud and snow.
U.S. DOT Tire Identification Number (TIN)
This begins with the letters “DOT” which indicates the tire meet s all federal standards. The
next two numbers or letters are the plant code where it was manuf actured, and the last four
numbers represent the week and year the tire was manufactured. For example, the numbers
457 means the 45st week of 1997. After 2000 the numbers go to four digits. For example,
the number 2102 means the 21th week of 2002. The other numbe rs are marketing codes
used at the manufacturer's discretion. This information is used to contact consum ers if a tire
defect requires a recall.
Tire Ply Com position and Materials Used
The number of plies indicates the number of layers of rubber-coated fabric in the tire. In
general, the greater the number of plies, the more wei ght a tire can support. Tire
manufacturers also must indicate the tire materials, which include steel, nylon, polyester,
and other.
Maximum Load Rat ing
This number indicates the maximum load in kilograms and pounds that can be carried by
the tire.
Maximum Permissible Inflation Pressure
This number is the greatest amount of air pressure that should ever be put in the tire under
normal driving conditions.
8-26
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
CX-5_8DR2-EA-14A_Edition1 Page486
Thursday, November 21 2013 8:50 AM
Form No.8DR2-EA-14A
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