Traction Grades
The Traction grades, from highest to low-
est, are AA, A, B, and C. These grades
represent the tire's ability to stop on wet
pavement, as measured under con-
trolled conditions on specified govern-
ment test surfaces of asphalt and con-
crete. A tire marked C may have poor
traction performance.
WARNING!
The traction grade assigned to this tire
is based on straight-ahead braking
traction tests, and does not include
acceleration, cornering, hydroplaning,
or peak traction characteristics.
Temperature Grades
The Temperature grades are A (the high-
est), B, and C, representing the tire's
resistance to the generation of heat and
its ability to dissipate heat, when tested
under controlled conditions on a speci-
fied indoor laboratory test wheel.
Sustained high temperature can cause
the material of the tire to degenerate and
reduce tire life, and excessive tempera-
ture can lead to sudden tire failure. The
grade C corresponds to a level of perfor-
mance, which all passenger vehicle tires
must meet under the Federal Motor Ve-
hicle Safety Standard No. 109. Grades B
and A represent higher levels of perfor-
mance on the laboratory test wheel, than
the minimum required by law.
WARNING!
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, under-inflation, or excessive
loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
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