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6-1. Specifications
Tire related term
Ply
Ply separation
Pneumatic tire
Radial ply tire
Reinforced tire
Section width
Sidewall
Sidewall separation
Snow tire
Test rim
486
A layer of rubber-coated parallel cords
A parting of rubber compound between adja-
cent plies
A mechanical device made of rubber, chemi-
cals, fabric and steel or other materials, that,
when mounted on an automotive wheel, pro-
vides the traction and contains the gas or fluid
that sustains the load
A pneumatic tire in which the ply cords that
extend to the beads are laid at substantially 90
degrees to the centerline of the tread
A tire designed to operate at higher loads and
at higher inflation pressures than the corre-
sponding standard tire
The linear distance between the exteriors of
the sidewalls of an inflated tire, excluding ele-
vations due to labeling, decoration, or protec-
tive bands
That portion of a tire between the tread and
bead
The parting of the rubber compound from the
cord material in the sidewall
A tire that attains a traction index equal to or
greater than 110, compared to the ASTM
E-1136 Standard Reference Test Tire, when
using the snow traction test as described in
ASTM F-1805-00, Standard Test Method for
Single Wheel Driving Traction in a Straight Line
on Snow-and Ice-Covered Surfaces, and which
is marked with an Alpine Symbol (
least one sidewall
The rim on which a tire is fitted for testing, and
may be any rim listed as appropriate for use
with that tire
I n f o r ma t i o n P r o v i d e d b y :
Meaning
) on at
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