Tire Ply Composition And Materials; Summer Tires Or All Season Tires; Radial Tires Or Bias-Ply Tires - Toyota PRIUS ALPHA 2012 Quick Reference Manual

6-1. Specifications

Tire ply composition and materials

Plies are layers of rubber-coated parallel cords. Cords are the
strands which form the plies in a tire.

Summer tires or all season tires

An all season tire has "M+S" on the sidewall. A tire not marked
"M+S" is a summer 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 put into the
tire. A tube type tire has a tube inside the tire and the tube main-
tains the air pressure.
Load limit at maximum cold tire inflation pressure
Maximum cold tire inflation pressure
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see "Uniform Tire Quality Grading" that follows.
"TEMPORARY USE ONLY"
A compact spare tire is identified by the phrase "TEMPORARY USE
ONLY" molded on its sidewall. This tire is designed for temporary
emergency use only.
576
(→P. 442)
(→P. 442)
(→P. 569)