666 9-1. Specifications
Tire related term
Curb weight
Maximum loaded vehicle weight
Normal occupant weight
Occupant distribution
Meaning
The weight of a motor vehicle with standard equipment, including the maximum capacity of traction battery and coolant, and if so equipped, air conditioning and additional weight optional traction motor
The sum of:( a) Curb weight( b) Accessory weight( c) Vehicle capacity weight( d) Production options weight
150 lb.( 68 kg) times the number of occupants
specified in the second column of Table 1 * that follows
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 standard 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
Rim diameter( Wheel diameter)
Rim size designation
Rim type designation Rim width
Vehicle capacity weight( Total load capacity)
Vehicle maximum load on the tire
A metal support for a tire or a tire and tube assembly upon which the tire beads are seated
Nominal diameter of the bead seat
Rim diameter and width
The industry manufacturer’ s designation for a rim by style or code
Nominal distance between rim flanges
The rated cargo and luggage load plus 150 lb.( 68 kg) times the vehicle’ s designated seating capacity
The load on an individual tire that is determined by distributing to each axle its share of the maximum loaded vehicle weight, and dividing by two