TTirire labelinge labeling
OvOverervieview of tirw of tire labelinge labeling
1Uniform Tire Quality Grading Standards
2DOT (Department of Transportation), (TIN)
Tire Identication Number
3Maximum tire load (/page 394)
4Maximum tire pressure (/page 394)
5Manufacturer
6Tire characteristics (/page 395)
7Tire size designation, load-bearing capacity,
speed rating and load index (/page 395)
8Tire name
%The data shown in the illustration is example
data.
TTirire Quality Gre Quality Gradingading
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 thefollowing three per-
formance factors:
1Tread wear grade
2Traction grade
3Temperature grade
%The data shown in the illustration is example
data.
%The classication is not legally stipulated for
Canada, but it is generally stated.
T
Trread wead wear grear gradeade
The treadwear grade is a comparative rating
based on thewear rate of the tire when tested
under controlled conditions on a specied govern-
ment test course. Forexample, a tire graded 150
would wear one and one-half (1\1/2\) times as
392392 Wheels and tires
