markings engraved or embossed on a sidewall are
a Julian date (last digit of the year followed by the day
shown in figure 11-13.
of the year, or 17 Oct 1985 = 5290). The next
positions are completed by the manufacturer and are
Most of the markings are self-explanatory, Item
either numbers or letters. They are used to create a
10 has a maximum of 10 characters. The first four
unique serial number for a particular tire. The cut
positions show the date of manufacture in the form of
limit (11 ) is expressed in thirty-seconds of an inch and
Figure 11-13.—New tire identification markings.
11-14
