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Tires and wheels 24 7
Gross Vehicle Weight Rating ("GVWR") Ply
means the maximum total loaded weight of
the vehicle .
Groove
means the space between two adjacent tread
ribs.
Load rating (code)
means the maximum load that a tire is rated
to carry for a given inflat ion pressure. You
may not find this informat ion on all tires be-
cause it is not requ ired by law.
Maximum load rating
means the load rating for a t ire at the maxi-
mum permissible inflation pressure for that
tire .
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production opt ions weight
Maximum (permissible) inflation pressure
means the maximum cold inf lation pressure
to which a tire may be inflated . Also called
"maximum inflation pressure."
Normal occupant weight
means 150 lbs. (68 kilograms) times the
number of occupants seated in the vehicle up
to the tota l seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a vehicle.
Outer diameter
means the overall diameter of an inflated new
tire .
Overall width
means the linear distance between the exter i-
ors of the sidewalls of an inflated tire, includ-
ing elevations due to labeling, decorations, or
protective bands or ribs.
means a layer of rubbe r-coated parallel cords.
Production options weight
means the combined weight of those installed
regular production opt ions weighing over 5
lbs. (2.3 kg) in excess of those standa rd items
which they replace, not previously considered
in curb weight or accessory weight, including
heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim.
Radial ply tire
means a pneumatic tire in which the ply cords
that extend to the beads are laid at substan-
tially 90 degrees to the centerl ine of the
tread.
Recommended inflation pressure
see ~ page 246, Cold tire inflation pressure .
Reinforced tire
means a t ire design to operate at higher loads
and at higher inflation pressures than t he cor-
responding standard tire. Reinforced tires
may be identified as "XL", "xl", "EXTRA LOAD",
or "RF" on the sidewal l.
Rim
means a metal support for a tire or a t ire and
tube assembly upon which the tire beads are
seated .
Rim diamete r
means nominal diameter of the bead seat. If
you change your wheel size, you wi ll have to
purchase new tires to match the new rim di-
ameter .
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between rim flanges.
Sidewall
means that portion of a t ire between the
tread and bead.
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