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A radial tire has "RADIAL" on the sidewall. A tire not marked "RADIAL" is a bias-ply tire.
TUBELESS or TUBE TYPE
F
A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire has a
tube inside the tire and the tube maintains the air pressure.
Load limit at maximum cold tire inflation pressure (P.446)
G
Maximum cold tire inflation pressure (P.530)
H
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
I
For details, see "Uniform Tire Quality Grading" that follows.
Summer tires or all season tires (P.446)
J
An all season tire has "M+S" on the sidewall. A tire not marked "M+S" is a summer tire.
"TEMPORARY USE ONLY"
K
A compact spare tire is identified by the phrase "TEMPORARY USE ONLY" molded on its
sidewall. This tire is designed for temporary emergency use only.
Typical DOT and Tire Identifica-
tion Number (TIN)
Type A
*
DOT symbol
A
Tire Identification Number (TIN)
B
Tire manufacturer's identification
C
mark
Tire size code
D
Manufacturer's optional tire type
E
code (3 or 4 letters)
Manufacturing week
F
Manufacturing year
G
8-1. Specifications
*
: The DOT symbol certifies that the tire
conforms to applicable Federal Motor
Vehicle Safety Standards.
Type B
*
DOT symbol
A
Tire Identification Number (TIN)
B
Tire manufacturer's identification
C
mark
Manufacturer's code
D
Manufacturing week
E
Manufacturing year
F
*
: The DOT symbol certifies that the tire
conforms to applicable Federal Motor
535
8
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