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Occupant Distribution
Designated seating positions.
Outward Facing Sidewall
side of an asymmetrical tire that
has a particular side that faces
outward when mounted on a
vehicle. The side of the tire that
contains a whitewall, bears
white lettering, or bears
manufacturer, brand, and/or
model name molding that is
higher or deeper than the same
moldings on the other sidewall
of the tire.
Passenger (P-Metric) Tire
tire used on passenger cars
and some light duty trucks and
multipurpose vehicles.
Recommended Inflation
Pressure
Vehicle
:
manufacturer's recommended
tire inflation pressure as shown
on the tire placard. See Tire
Pressure on page 9 12
:
andVehicle Load Limits on
page 9 12.
The
:
Radial Ply Tire
tire in which the ply cords that
extend to the beads are laid at
90 degrees to the centerline of
the tread.
Rim
A metal support for a tire
:
and upon which the tire beads
are seated.
Sidewall
:
between the tread and the bead.
Speed Rating
A
:
alphanumeric code assigned
to a tire indicating the maximum
speed at which a tire can
operate.
Traction
:
the tire and the road surface.
The amount of grip provided.
I n f o r ma t i o n P r o v i d e d b y :
A pneumatic
:
The portion of a tire
An
:
The friction between
Vehicle Care
Tread
The portion of a tire
:
that comes into contact with
the road.
Treadwear Indicators
:
bands, sometimes called wear
bars, that show across the tread
of a tire when only 1.6 mm
(1/16 in) of tread remains. See
When It Is Time for New Tires
on page 10 66.
UTQGS (Uniform Tire Quality
Grading Standards)
:
information system that provides
consumers with ratings for a
tire's traction, temperature,
and treadwear. Ratings
are determined by tire
manufacturers using
government testing procedures.
The ratings are molded into
the sidewall of the tire. See
Uniform Tire Quality Grading on
page 10 69.
10-57
Narrow
A tire
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