Flat spot on tyres

[Alan]

Talking about tyre age is misleading because it’s only part of the equation. Conditions of use are at least as important. A tyre which is kept outside in the sun and used only occasionally will have a completely different life expectancy to one which is used every day and kept in a dark garage in between. This is the reason the tyre industry is reluctant to see a life requirement introduced on car tyres. If asked is a 5 year old tyre ok to use I’d say I don’t know it depends. If asked about a tyre made in the 1990s I’d say almost certainly not.