Might be good for rollers but i wouldnt take them on any long trips. I heard once that if you live where they do inspections it was 6 years. I ran that old and older on stuff that is just around town., always worried they would cause issues at high speed
So much depends on how they are used, properly used, climate, storage, Uv exposer - my car trailer tires get replaced after 4 seasons and they are always covered and stored indoors in the winter. My motor home tires are now 6 years old w/ 18,000 miles always covered but showing signs of cracking and are getting replaced. Yes you have heard right of ten years MAX but what is your safety worth.
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