A quick stroll through the parking lot shows the triangle present on
Bridgestone, Pirelli, Firestone and Continental tires. It was missing on
Yokohama and Dunlop (that I know were made since 1990).
On Friday, September 10, 1999 1:11 PM, Randall Young
[SMTP:randallyoung@earthlink.net] wrote:
> Rob :
>
> If the tire was made in the last 20 years or so, it should have the full
DOT serial number on the sidewall. This is a group of 12-14 numbers and
letters, beginning with DOT and ending with a 3 digit number, which tells
when the tire was made. In that 3 digit number, the first two digits are
the week number, the last digit is the year. For tires made in the 1990's
(at least for Michelins, I'm not certain about other tires), there should
be a triangle shaped figure after the last digit.
>
> See http://www.dunloptire.com/tt101_dot.html (which doesn't explain the
triangle)
>
> Randall
>
> On Friday, September 10, 1999 11:12 AM, Rob C Swift
[SMTP:RobSwift@PetCentre.com] wrote:
> >
> > Hello All,
> >
> > After purchasing my second '75 TR6, I am now the proud owner of 6 used
> > Michelin Redline tires. Some of these tires appear to be in pretty
good
> > shape. Is there a way to find out how old they are based on
information I
> > can find on the tire? Is there a market out there for used redlines
since
> > the new ones are so expensive?
> >
> > Thanks!
> >
> > Rob Swift
> > Manassas, Virginia
> > '75 TR6 (daily driver)
> > '75 TR6 (in pieces!)
> >
> >
> >
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