2012 Toyota Venza Owners Manual - Page 955

6-1. Specifications Tire related term Meaning A tire that attains a traction index equal to or greater than 110, compared to the ASTM E1136 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 which is marked with an Alpine Symbol ( least one sidewall ) on at Snow tire Test rim 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 6 Tread Tread rib Tread separation Treadwear indicators (TWI) Wheel-holding fixture Vehicle specifications 655 VENZA_U (OM73013U)