Consumer information and Reporting safety defects/Tire information
. Passenger car tire
A tire intended for use on passen-
ger cars, multipurpose passenger
vehicles, and trucks, that have a
gross vehicle weight rating (GVWR)
of 10,000 lbs (4,535 kg) or less.
. Ply
A layer of rubber-coated parallel
cords.
13-7
sory weight, including heavy duty
brakes, ride levelers, roof rack,
heavy duty battery, and special trim. . Rim type designation
. Radial ply tire . Rim width
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. Nominal distance between rim
flanges.
The industry of manufacturer’s des-
ignation for a rim by style or code.
. Section width
. Ply separation sure A parting of rubber compound
between adjacent plies. The cold inflation pressure recom-
mended by a vehicle manufacturer. The linear distance between the
exteriors of the sidewalls of an
inflated tire, excluding elevations
due to labeling, decoration, or pro-
tective bands.
. Pneumatic tire . Reinforced tire . Sidewall
A mechanical device made of rub-
ber, chemicals, fabric and steel or
other materials, that, when
mounted on an automotive wheel,
provides the traction and contains
the gas or fluid that sustains the
load. A tire designed to operate at higher
loads and at higher inflation pres-
sures than the corresponding stan-
dard tire. That portion of a tire between the
tread and bead.
. Production options weight
The combined weight of those
installed regular production options
weighing over 5.1 lbs (2.3 kg) in
excess of those standard items
which they replace, not previously
considered in curb weight or acces-
. Recommended inflation pres-
. Rim
A metal support for a tire or a tire
and tube assembly upon which the
tire beads are seated.
. Sidewall separation
The parting of the rubber compound
from the cord material in the side-
wall.
. Test rim
Nominal diameter of the bead seat. The rim on which a tire is fitted for
testing, and it may be any rim listed
as appropriate for use with that tire.
. Rim size designation . Tread
Rim diameter and width. That portion of a tire that comes into
contact with the road.
. Rim diameter
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