Thats at 5 psi, I competed in West Oz Challenge ( a cross terrain style event ) at that pressure, without beadlocks, at speeds of 90 odd kph without tyres coming off the rims. I did have to break the bead on a tyre at the end of each day to remove the gravel out of the beads that was causing a slow leak, 1 tyre per day over a 2 day event. But I wouldnt recommend hitting obstacles at the speeds I was doing in a normal social outing.
I dont have any closeups but this is how they look at that pressure with the wieght off the drivers tyre. Baring in mind these tyres are 3-4 years old now.
