BRZ _ U. book 399 ページ 2024 年 6 月 4 日 火曜日 午後 5 時 18 分
� Snow tire
A tire that attains a traction index equal to or greater than 110, compared to the ASTM E1136-93 Standard Reference Test Tire, when using the snow traction test as described in ASTM F-1805-00, Standard Test Method for Single Wheel Driving Traction in a Straight Line on Snow-and Ice-Covered Surfaces, and that is marked with an Alpine Symbol“” on at least one sidewall.
� Test rim
The rim on which a tire is fitted for testing, and it may be any rim listed as appropriate for use with that tire.
� 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.
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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.