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to tread quality, tire traction and temperature
characteristics. The quality grading assessment is
made by the manufacturer following speci cations
from the U.S. government. The quality grade of a
tire is printed on the side wall of the tire.
R R ecommended tir
ecommended tire pr
e pressur
essure: e: the recommended
tire pressure is the tire pressure speci ed for the
tires mounted on the vehicle at the factory.
The tire and information placard contains the rec-
ommended tire pressure for cold tires, the maxi-
mum permissible load and the maximum permissi-
ble vehicle speed.
The tire pressure table contains the recommen-
ded tire pressure for cold tires under various oper-
ating conditions, i.e. loading and/or speed of the
vehicle.
Incr
Increased v
eased vehicle w
ehicle weight due t
eight due to op
o optional eq
tional equip-
ment:
ment: the combined weight of all standard and
optional equipment available for the vehicle,
regardless of whether it is actually installed on the
vehicle or not.
Rim: the part of the wheel on which the tire is
Rim:
installed.
G G A A WR (Gr
WR (Gross Axle W
oss Axle Weight R
eight Rating):
the maximum gross axle weight rating. The actual
load on an axle must never exceed the gross axle
weight rating. The gross axle weight rating can be
found on the vehicle identi cation plate on the
B‑pillar on the driver's side.
Speed rating:
Speed r
ating: the speed rating is part of the tire
identi cation. It speci es the speed range for
which a tire is approved.
G G VW (Gr
VW (Gross V
oss Vehicle W
ehicle Weight):
eight): the gross vehicle
weight comprises the weight of the vehicle includ-
ing fuel, tools, the spare wheel, any accessories
installed, occupants, luggage and the trailer nose-
weight, if applicable. The gross vehicle weight
must not exceed the gross vehicle weight rating
GVWR as speci ed on the vehicle identi cation
plate on the B‑pillar on the driver's side.
uip-
G G VWR (Gr
VWR (Gross V
oss Vehicle W
ehicle Weight R
eight Rating):
the maximum permitted gross weight of the fully
laden vehicle (weight of the vehicle including all
accessories, occupants, fuel, luggage and the
trailer drawbar noseweight if applicable). The
gross vehicle weight rating is speci ed on the
vehicle identi cation plate on the B‑pillar on the
driver's side.
ating): the GAWR is
Maximum weight of t
Maximum w
mum weight is the sum of the curb weight of the
vehicle, the weight of the accessories, the maxi-
mum load and the weight of optional equipment
installed at the factory.
Kilopascal (kPa): a): metric unit for tire pressure.
Kilopascal (kP
6.9 kPa corresponds to 1 psi. Another unit for tire
pressure is bar. 100 kilopascal (kPa) equals 1 bar.
Load index: x: in addition to the load-bearing index,
Load inde
the load index may also be printed on the side
wall of the tire. This speci es the load-bearing
capacity of the tire more precisely.
Curb weight:
Curb w
eight: the weight of a vehicle with standard
equipment including the maximum capacity of
fuel, oil and coolant. It also includes the air condi-
tioning system and optional equipment if these
are installed on the vehicle, but does not include
ating): the GVWR is
passengers or luggage.
Maximum tire load:
Maximum tir
maximum permissible weight in kilograms or lbs
for which a tire is approved.
Maximum permissible tir
Maximum per
permissible tire pressure for one tire.
Wheels and tires 375
375
eight of the laden v
he laden vehicle:
ehicle: the maxi-
e load: the maximum tire load is the
missible tire pr
e pressur
essure: e: maximum
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