Toyota 2012 Avalon Owner's Manual page 509

6-1. Specifications
Tire information
Typical tire symbols
Tire size
DOT and Tire Identification Number (TIN)
Location of treadwear indicators
Uniform tire quality grading
For details, see "Uniform Tire Quality Grading" that follows.
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the
strands which form the plies in a tire.
Radial tires or bias-ply tires
A radial tire has RADIAL on the sidewall. A tire not marked RADIAL
is a bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly filled in the
tire. A tube type tire has a tube inside the tire and the tube main-
tains the air pressure.
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I n f o r ma t i o n P r o v i d e d b y :
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