Free Traffic Legal Advice

Hi folks,
As usually I am broaching a very interesting topic which I believe must assist all of us through personal experiences & amusing opinions. My question is regarding a plugged tire which usually is temporarily repaird by breakdown companies. So, after this repair, how long does this flat tyre last on average? And, if the tyre still has sufficient tread depth left on it, then, still should it really need to be replaced, or a proper professional puncture will reinvigorate it. 

Plugged externally or internally?

A properly installed internal "mushroom" style plug should last the life of the tyre, I've had several £10 cash in hand jobbys over the years and they've all lasted the life of the tyre they were installed into.

The external plugs are more temporary, although if the instructions are followed, I understand they're pretty solid in there (I would not trust my life to them, especially on a motorcycle).

I can have no idea whether it is safe to use your tyres.

It would be helpful to know the date of manufacture as shown on the DOT number on the tyre wall. The final four numbers represent the week and year of manufacture.
You mention degradation due to age shown as ‘minor cracking’ and ‘age deterioration’.
If you have any doubts, get the tyre checked by professionals at a reputable tyre retailer.
I would suggest that it may be unwise to use an aging tyre showing cracking on the road.

How old are the tyres ?  Check the DOT numbers as I suggested above.

https://www.petebarden.co.uk/news/images/tyre-age.jpg

Try this and have another look, it should help.

Any professional such as tyre shop they will mechanically suggest to change tyres even all. The rubber is cracking/deteriorating not from sidewall but on the edges of tread depth but tread depth is still satisfactory. Tyres are holding strong air pressure and on driving showing no abnormality.

Rubbish, find a local trusted tyre dealer, there are several near me that I'd trust the opinion on (and have done, they were the ones that have plugged tyres for me versus telling me I needed a new tyre).

The date code of 4 digits will be in a rounded rectangle, probably near other codes made up of letters. If your tyre does not have this, it may be older than 2000, in which case it may only have 3, with an additional symbol.

https://www.oponeo.co.uk/blog/tyre-s-date-of-manufacture

IMO on a regularly used car I would not trust any tyre more than 10 years old, although a 10 year old Michelin is going to perform better than a 10 year old Chinese brand, along with lots of other environmental factors including how they have been stored.