CONSUMER INFORMATION AND REPORTING SAFETY DEFECTS 551
. Treadwear indicators( TWI)
The projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread.
. Vehicle capacity weight
The rated cargo and luggage load plus 150 lbs( 68 kg) times the vehicle’ s designated seating capacity.
. Vehicle maximum load on the tire
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.
. Vehicle normal load on the tire
Load on an individual tire that is determined by distributing to each axle its share of the curb weight, accessory weight, and normal occupant weight( distributed in accordance with Table 1 that is appended to the end of this section) and dividing by 2.
. Wheel-holding fixture
The fixture used to hold the wheel and tire assembly securely during testing.
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