9-1. Specifications
605
Tire related term
Snow tire
Test rim
Tread
Tread rib
Tread separation
Treadwear indicators( TWI)
Wheel-holding fixture
A tire that attains a traction index equal to or greater than 112, compared to the ASTM F2493 standard reference test tire when using the snow traction test on the medium pack snow surface as described in ASTM F1805-20, Standard Test Method for Single Wheel Driving Traction in a Straight Line on Snow-and Ice-Covered Surfaces, and which is marked with an
Alpine Symbol( sidewall
Meaning
) on at least one
The rim on which a tire is fitted for testing, and may be any rim listed as appropriate for use with that tire
That portion of a tire that comes into contact with the road
A tread section running circumferentially around a tire
Pulling away of the tread from the tire carcass
The projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread
The fixture used to hold the wheel and tire assembly securely during testing
*: Table 1 �Occupant loading and distribution for vehicle normal load for various designated seating capacities
Designated seating capacity, Number of occupants
Vehicle normal load, Number 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
9
Vehicle specifications