Toyota PRIUS ALPHA 2012 Quick Reference Manual page 601

Tire related term
Overall width
Passenger car tire
Ply
Ply separation
Pneumatic tire
Radial ply tire
Reinforced tire
The linear distance between the exteriors of
the sidewalls of an inflated tire, including eleva-
tions due to labeling, decorations, or protective
bands or ribs
A tire intended for use on passenger cars, mul-
tipurpose passenger vehicles, and trucks, that
have a gross vehicle weight rating (GVWR) of
10,000 lb. or less.
A layer of rubber-coated parallel cords
A parting of rubber compound between adja-
cent plies
A mechanical device made of rubber, chemi-
cals, fabric and steel or other materials, that,
when mounted on an automotive wheel, pro-
vides the traction and contains the gas or fluid
that sustains the load
A pneumatic tire in which the ply cords that
extend to the beads are laid at substantially 90
degrees to the centerline of the tread
A tire designed to operate at higher loads and
at higher inflation pressures than the corre-
sponding standard tire
6-1. Specifications
Meaning
6
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