Back in the day of real rubber in tyres, a well-heeled motorist would, I am told, buy a set of tyres and put them away in a dark shed for quite some time- a year or more. When the current running tyres wore out, the NOS ones would then be fitted and another set bought to be put aside to 'age'. Most motorists never had the available funds for such niceties.
I was wondering if this is an inside to the rubber recipe that could be used in the current tires being made today. There is a lot of discussion on this forum as to the longevity of the tires being made now and how it is less that tires made years ago.
All I remember about tires in the 60's and 70's was that a polyester or nylon tire was thought to be really good if you got 15 k on it, 20 k was almost unheard of in this part of the country. I currently have over 40k on a set of 21" Bedfords but attribute that to the much better roads we have. I won't run 40 or 50 year old tires as I think more of my grand childrens safety than that. The tires made now of any brand in my opinion are much better, longevity? time will tell. KGB
My last set of Michelins lasted 90,000 miles. My current set still has good tread at 65,000 miles.