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404 8-1. Specifications * : Table 1 Occupant loading and distribution for vehicle normal load for various desig- nated seating capacities Section width The linear distance between the exteriors of the sidewalls of an Sidewall That portion of a tire between the tread and bead Sidewall separation The parting of the rubber compound from the cord material in the Snow tire A tire that attains a traction index equal to or greater than 110, com- Alpine Symbol ( ) on at least one sidewall Test rim The rim on which a tire is fitted for testing, and may be any rim listed Tread That portion of a tire that comes into contact with the road Tread rib A tread section running circumferentially around a tire Tread separation Pulling away of the tread from the tire carcass Treadwear indica- The projections within the principal grooves designed to give a visual Wheel-holding fix- The fixture used to hold the wheel and tire assembly securely during Designated seating capacity, Number of occupants Vehicle normal load, Num- ber of occupants Occupant distribution in a normally loaded vehicle 2 through 4 2 2 in front 5 through 10 3 2 in front, 1 in second seat 11 through 15 5 2 in front, 1 in second seat, 1 in third seat, 1 in fourth seat 16 through 20 7 2 in front, 2 in second seat, 2 in third seat, 1 in fourth seat Tire related term Meaning |