2000 to present
The date code is four digits long. The first two digits represent the week of production, and the second two represent the year. The tyre in the picture was made in the thirteenth week of 2011.
1990-1999
The date code is three digits long. For the Nineties this was followed by a triangle. The first two digits represent the week of production, the third digit represents the year. The tyre in the picture was made in the first week of 1996 (note the small triangle on the right)
1980-1989
The three-digit code was also used in the Eighties, but without the triangle. The format is otherwise exactly the same as the later system. So, the tyre in the picture was made in the seventh week of 1981.
Before 1980
If your tyre doesn’t have any of the markings above, it was made before 1980 and should be replaced as a matter of course.
