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vehicle’s Gross Axle Weight Rating –
GAWR. Note, front vs. rear GAWR and tire
loads, respectively.
Speed letter
Designation Maximum speed
Q up to 100 mph/160 km/h
R: up to 106 mph/170 km/h
S up to 112 mph/180 km/h
T up to 118 mph/190 km/h
H up to 131 mph/210 km/h
V up to 150 mph/240 km/h
W up to 167 mph/270 km/h
Y up to 186 mph/300 km/h
Tire Identification Number
DOT-Code: DOT xxxx xxx 2119
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
2119: tire age
Tires with DOT codes meet the guidelines
of the U.S. Department of Transportation.
Tire age
Recommendation
Regardless of the tire tread, replace tires at
least every 6 years.
Manufacture date
You can find the manufacture date of the
tire on the tire's sidewall.
Designation Manufacture date
DOT … 2119 21st week, 2019
Uniform Tire Quality Grading
Quality grades can be found where applica-
ble on the tire sidewall between tread
shoulder and maximum section width.
E.g.: Treadwear 200; Traction AA; Tempera-
ture A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger vehicle tires must conform to
Federal Safety Requirements in addition to
these grades.
Treadwear
The treadwear grade is a comparative rating
based on the wear rate of the tire when
tested under controlled conditions on a
specified government test course. E.g., a
tire graded 150 would wear one and one-
half, 1 g, times as well on the government
course as a tire graded 100. The relative
performance of tires depends upon the ac-
tual conditions of their use, however, and
may depart significantly from the norm due
to variations in driving habits, service prac-
tices and differences in road characteristics
and climate.
Traction
The traction grades, from highest to lowest,
are AA, A, B, and C.
Those grades represent the tire's ability to
stop on wet pavement as measured under
controlled conditions on specified govern-
ment test surfaces of asphalt and concrete.
A tire marked C may have poor traction per-
formance.
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
Seite 265
Wheels and tires MOBILITY
265
Online Edition for Part no. 01402667273 - VI/19
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