Our tractor does no road work plough simba sl and goes on a 24 meter dribble bar we ran the front at 20 psi and the back at 18 psi and we were advised by trelleborg to run them much lower than this we have many other tractors here and was just looking at one yesterday that has done over 6000 hours but they are Michelins and that’s we’re I expected them to beI've had no bother with them. Over 6k hours, 5 years on first set. Got them on replacement tractor and it's done 4800 hours and still plenty life left. Tractor does no roadwork/haulage. Just travelling to fields. Ploughs, square bales, mowers etc.
I don't mess with pressures often. Probably run too hard if anything