Note:
You may not find this information on all tires because it is not
required by federal law.
Letter rating
Speed rating - mph (km/h)
M
81 mph (130 km/h)
N
87 mph (140 km/h)
Q
99 mph (159 km/h)
R
106 mph (171 km/h)
S
112 mph (180 km/h)
T
118 mph (190 km/h)
U
124 mph (200 km/h)
H
130 mph (210 km/h)
V
149 mph (240 km/h)
W
168 mph (270 km/h)
Y
186 mph (299 km/h)
Note:
For tires with a maximum speed capability over 149 mph (240
km/h), tire manufacturers sometimes use the letters ZR. For those with
a maximum speed capability over 186 mph (299 km/h), tire
manufacturers always use the letters ZR.
8.
U.S. DOT Tire Identification Number (TIN):
This begins with
the letters “DOT” and indicates that the tire meets all federal
standards. The next two numbers or letters are the plant code
designating where it was manufactured, the next two are the tire
size code and the last four numbers represent the week and year the
tire was built. For example, the numbers 317 mean the 31st week of
1997. After 2000 the numbers go to four digits. For example, 2501
means the 25th week of 2001. The numbers in between are
identification codes used for traceability. This information is used to
contact customers if a tire defect requires a recall.
9.
M+S or M/S:
Mud and Snow, or
AT:
All Terrain, or
AS:
All Season.
10.
Tire Ply Composition and Material Used:
Indicates the number
of plies or the number of layers of rubber-coated fabric in the tire
tread and sidewall. Tire manufacturers also must indicate the ply
materials in the tire and the sidewall, which include steel, nylon,
polyester, and others.
2006 B-Series (mbs)
Owners Guide (post-2002-fmt)
Canadian_French (fr_can)
Tires, Wheels and Loading
118
