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48
M aintenance Fundamentals
Tire Service Life
The
service
life
of your tires is dependent on
many factors, including, but not
limited
to,
riding habits, road conditions, vehicle
loading,
tire air pressure, maintenance history, speed,
and environmental conditions (even when the
tires are not in use).
In
addition to your regular
inspections
and
maintenance,
it
is recommended that you have
annual
inspections
performed once
the tires
reach 5
years old. It
is
also recommended
that
all tires be removed
from
service after
10
years
from the date of manufacture, regardless of
their condition or state of wear.
The
last four
digits
of the
TIN
(tire identification
number) indicate the date of manufacture.
I
Tire
Identification
Number
(TIN)
Th
e
tire identification
number (TIN) is a group of
numbers and
letters
located on the sidewall of
the tire.
CD
0
®
DOT XXXX XXXX 22 09
DOT:
This
indicates that the tire meets
all
requirements
of the U.S.
Department
of
Transportation.
CD
XXXX:
Factory
code
0
XXXX:
Tire
type code
@
22 09:
Date
of manufacture (week
&
year).
Example:
week 22
in
year 09.