5176-1. Specifications6Vehicle specificationsTire related term MeaningOccupant distributionDistribution of occupants in a vehicle as specified in the third column of Table 1* belowProduction options weightThe 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 trimRimA metal support for a tire or a tire and tube assembly upon which the tire beads are seatedRim diameter (Wheel diameter)Nominal diameter of the bead seatRim size designation Rim diameter and widthRim type designationThe industry manufacturer's designation for a rim by style or codeRim width Nominal distance between rim flangesVehicle capacity weight (Total load capacity)The rated cargo and luggage load plus 150 lb. (68 kg) times the vehicle's designated seating capacityVehicle maximum load on the tireThe load on an individual tire that is determined by distributing to each axle its share of the maximum loaded vehicle weight, and dividing by twoVehicle normal load on the tireThe load on an individual tire that is determined by distributing to each axle its share of curb weight, accessory weight, and normal occupant weight (dis-tributed in accordance with Table 1* below), and dividing it by two
