Tire labeling
Overviewoftirelabeling
1
Uniform Tire Quality Grading Standards
(/ page305)
2
DOT(Department of Transportation), (TIN)
Tire Identification Number (/ page306)
3
Maximumtireload(/page306)
4
Maximumtirepressure(/page307)
5
Manufacturer
6
Characteristics of thetire(/page307)
7
Tire size designation, load-bearing capacity,
speed rating and load index (/ page307)
8
Tire name
%
The data shown in theillustration is sample
data.
Information on tirequality grades
According to therequirements of theU.S.
Department of Transportation's "Uniform Tire
Quality Grading Standards" tiremanufacturers
mustgrade their tires using thefollowing three
performancefactors:
1
Tread wear grade
2
Traction grade
3
Temperaturegrade
%
The datashown in theillustration is sample
data.
%
This grading is notlegallyprescribed forCan‐
ada,but specified in mostcases anyway.
Tread wear grade
The tread wear grade is acomparativegrading
based on tread wear grade testsconducted
under controlled conditionsonaspecified U.S.
Department of Transportationtesttrack.For
example, atiregraded 150would wear one and
one-half times as well on thegovernment test
trackasatiregraded100.
The relativeperformanceoftires depends upon
theactual conditions of their use, however, and
maydepartsignificantlyfromthe normdue to
variations in drivinghabits, servicepractices and
differences in road characteristicsand climate
conditions.
Tractiongrade
&
DANGER Risk of accidentdue to inade‐
quatetraction
The traction grade assigned to this tireis
based on straight-ahead brakingtraction
tests, and does notinclude either accelera‐
tion, cornering, hydroplaning or peak traction
characteristics.
#
Alwaysadaptyour driving styleand
driveataspeed to suit theprevailing
trafficand weather conditions.
*
NOTE Damage to thedrivetrainfrom
wheelspin
#
Avoid wheelspin.
The traction grades –fromhighesttolowest –
areAA, A, Band C. These grades relatetothe
Wheels and tires
305
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