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Radial tires or bias-ply tires
A radial tire has RADIAL on the sidewall. A tire not marked RADIAL
is a bias-ply tire.
Summer tire or all season tire
An all season tire has M+S on the sidewall. A tire not marked M+S
is a summer tire.
Typical DOT and tire identification number (TIN)
DOT symbol
Tire
(TIN)
Tire
identification mark
Tire size code
Manufacturer's optional tire
type code (3 or 4 letters)
Manufacturing week
Manufacturing year
*
:The DOT symbol certifies that
I n f o r ma t i o n P r o v i d e d b y :
6-1. Specifications
(→P. 399)
*
Identification
manufacturer's
the tire conforms to applicable
Federal Motor Vehicle Safety
Standards.
Number
6
497
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