How old are my tyres ?!

[huggy59]

Frigthening day on wet roads today ... Make me think how old my tyres are ?

Quite easy for front ones: JKD3817 is 38th week of 2017 isn't it?


But more complicated for rear (Firestone F590).
No DOT number and 02 52725 or 0226188-S don't speak to me: 26th week of 2002 ?! But didn't match post or pre 2000 tyre age decoder
Could explain funny roadholding on wet with 20 years old tyres at the back and 5 years one at front !


But would like to be sure, any help appreciated !

[ericbushby]

Hi,
I do not think either of those marks are date codes. Look for four numbers in a rectangle with rounded ends (oval)
Week first, then year. Are your tyres so old that they predate the date code system. I think mine were when I spun
off a wet road. I had no idea how old they were.
Cheers
Eric in Burnley
1967 S3SE DHC

[mbell]

Frigthening day on wet roads today ... Make me think how old my tyres are ?

It's interesting but does it matter? Sounds like they need replacing either way. They aren't making new plus 2 or new you but they are making new tyres....

[Fred Talmadge]

Date codes

https://www.tirerack.com/tires/tiretech ... lsrc=aw.ds

[ericbushby]

Thank you Fred
That is better. Now I understand it
Eric in Burnley

[huggy59]

Finally found on inner side (only) of rear tyres



33th week of 2003, nearly 10 years old: Time for a change

[richardcox_lotus]

Finally found on inner side (only) of rear tyres



33th week of 2003, nearly 10 years old: Time for a change

I think you’ll find that’s 20 !

[ericbushby]

Yes, that is the mark I was trying to describe
Eric in Burnley