In my not so humble opinion, I would rather have a 40k mile tire than an 80k mile tire that dry rots before it is worn out. I think most of the real LRR tires are made this way.
Even then a hypermiler will get significantly more mileage out of the same LRR tire due to the lower stresses in their driving technique.
I remember when OEM tires would wear out before 10k miles. My aunts 1965 Cadillac wore out it's original tires in 6k miles and she was in no way an agressive driver. She asked me what tires to get for replacements, in 1967. I told her Michelin X. She replaced them 13 years later after the car reached 70k miles total, when the Michelins were dry rotted, not worn out. That is the basis for my opinion.
My father in law had his Michelins replaced due to dry rot, when they had 90% of the tread remaining, without any warranty assistance. No rationale can convince me to buy tires that dry rot that quickly.
regards
Mech
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