I would expect somewhere between 20-25k, I had a tongue wait of 350kg on my camper as well as the rear cargo and rear seats being fully packed with gear approx another 200kg for 10,000km over the Gibb and Tanami. The tyres didn't miss a beat,just lowered the pressures to 28psi on the gravel (rock ) roads...
This was the toughest I have ever experienced being fully loaded and they handled it well
Cape leveque road was the worst 170km of jarring corrugations with wash outs.
But I am going again as it is a great place to visit
Now that I have returned home,back on the bitumen they are as quiet as the day I bought them,but I rotate them (all 5) every 10,000Km
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