[Trackrash]

Originally Posted by 82 SC

A friend of mine that sells used cars for a living has the same thought as me on tires. Seems the big companys like to have their tires to dry rot sooner than later and that he has found that Korean tires will last longer not in miles but years. Just a theory but I have see tires dry rot faster than I can drive them. In the US its now replace your mattress after 8 years! BS, can't stand throw away items that only last a few years. Same with Appliances.... Grrrrrrr.

I agree that the 5 year thing is total BS. Planned Obsolescence. Pure and simple.
All you have to do, if you don't believe it, is to look at LT or trailer tiers. They don't rot out after five years.
I will say this, if you keep them out of the sun and apply tire dressing regularly, they can be made to last longer.
The Toyo RA-1s on the front of my 911 are way older than five years and have no cracking AND still grip well.