Tire labeling
Overview of tire labeling
1
Uniform Tire Quality Grading Standard
(/ page 276)
2
DOT, Tire Identification Number
(/ page 277)
3
Maximum tire load (/ page 278)
4
Maximum tire pressure (/ page 278)
5
Manufacturer
6
Characteristics of the tire (/ page 279)
7
Tire size designation, load-bearing capacity,
speed rating and load index (/ page 279)
8
Tire name
%
The data shown in the image is example
data.
Tire Quality Grading
In accordance with the US Department of Trans‐
portation's "Uniform Tire Quality Grading Stand‐
ards", tire manufacturers are required to grade
their tires on the basis of the following three per‐
formance factors:
1
Tread wear grade
2
Traction grade
3
Temperature grade
%
The data shown in the illustration is example
data.
%
The classification is not legally stipulated for
Canada, but it is generally stated.
Tread wear grade
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified test
track of the US Department of Transportation.
For example, a tire graded 150 would wear one
276
Wheels and tires
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