Subaru Legacy Manuals 2019 Legacy Owner's Manual | Page 486

13-8 Consumer information and Reporting safety defects/Tire information . Sidewall . Tread rib That portion of a tire between the tread and bead. A tread section running circumfer- entially around a tire. . Sidewall separation . Tread separation The parting of the rubber compound from the cord material in the side- wall. Pulling away of the tread from the tire carcass. . Snow tire The projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread. A tire that attains a traction index equal to or greater than 110, com- pared to the ASTM E-1136 Stan- dard 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 which 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. . Treadwear indicators (TWI) . Vehicle capacity weight The rated cargo and luggage load plus 150 lbs (68 kg) times the vehicle’s designated seating capa- city. . 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 oc- cupant weight (distributed in accor- dance 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.