404
8-1. Specifications
For details, see "Uniform Tire Quality Grading" that follows.
Summer tires or all season tires (P.330)
K
An all season tire has "M+S" on the sidewall. A tire not marked "M+S" is a summer tire.
Compact spare tire
Tire size (P.405)
A
DOT and Tire Identification Number (TIN) (P.405)
B
Location of treadwear indicators (P.330)
C
Tire ply composition and materials
D
Plies are layers of rubber-coated parallel cords. Cords are the strands which form the plies
in a tire.
Radial tires or bias-ply tires
E
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.407)
G
Maximum cold tire inflation pressure (P.407)
H
This means the pressure to which a tire may be inflated.
"TEMPORARY USE ONLY"
I
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.