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8-1. Specifications
Curb weight
The weight of a motor vehicle with standard equipment,
including the maximum capacity of fuel, oil and coolant,
and if so equipped, air conditioning and additional weight
optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight
150 lb. (68 kg) times the number of occupants specified
in the second column of Table 1
*
that follows
Occupant distribution
Distribution of occupants in a vehicle as specified in the
third column of Table 1
*
below
Production options weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the stan-
dard 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
Rim
A metal support for a tire or a tire and tube assembly upon
which the tire beads are seated
Rim diameter
(Wheel diameter)
Nominal diameter of the bead seat
Rim size designation Rim diameter and width
Rim type designation
The industry manufacturer’s designation for a rim by style
or code
Rim width Nominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)
The rated cargo and luggage load plus 150 lb. (68 kg)
times the vehicle’s designated seating capacity
Vehicle maximum load on the
tire
The load on an individual tire that is determined by distrib-
uting to each axle its share of the maximum loaded vehicle
weight, and dividing by two
Vehicle normal load on the tire
The load on an individual tire that is determined by distrib-
uting to each axle its share of curb weight, accessory
weight, and normal occupant weight (distributed in accor-
dance with Table 1
*
below), and dividing by two
Tire related term Meaning
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