My missus drove for 15km (work to home) with much less than 10PSI in one of ours after it went flat from mud stuffed into the bead (she didnt realise...). No damage whatsoever from this event. Have 30,000km an them so far and not a mark on them, and like wranglertj I wish they would wear out quicker! (missus wont let me replace them whilst they have decent tread on them
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How is the spare? It almost sounds like a batch fault. I would definately drop in to the dealer.