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Whee
l
s
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim
.
Bead separation
means a breakdown of the bond
between components
in
the bead.
Cord
means the strands form ing the
plies
in
the tire.
Cold tire inflation
pressure
means the tire pressure recom-
mended by the vehicle manufac-
turer for a tire of a designated
size that has not been driven for
more than a coup le of miles (kilo-
meters) at low speeds in the three
hour period before the tire pres-
sure is measured or adjusted
.
Curb we ight
means the weight of a motor ve-
hicle with standard equipment
in-
cluding the maximum capacity of
fuel, oil, and coolant
,
air condi
-
tioning and additional weight of
optional equipment.
Extra load tire
means a tire des igned to operate
at higher loads and at higher in-
2
1
2
flation pressures than the corre-
sponding standard tire
.
Extra load
tires may be identified as "XL",
"xl", "EXTRA LOAD", or
"RF"
on
the sidewall.
Gross Axle Weight Rating
("GAWR
")
means the load-carrying capacity
of a single axle system
,
measured
at the tire-ground
interfaces
.
Gross
Vehicle Weight Rating
("GVWR"
)
means the max imum total loaded
weight of the vehicle
.
Groove
means the space between two ad-
jacent tread ribs
.
Load rating
(code)
means the max imum load that a
tire is rated to carry for a given in-
flation pressure
.
You may not find
this information on all tires be-
cause it is not required by law.
Maximum load rating
means the load rating for a tire at
the maximum permissible infla-
tion pressure for that tire
.
Maximum loaded vehicle
w eight
means the sum of:
...
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