Barely 10 hours on my new 1140 and I've gotten 2 flats allready. I have the ATV tires, maybe I should have gotten the worksite tires. Anyway, my last tractor I had the tires filled. That worked very well in preventing flats from the thorn apple trees that I seem to not be able avoid. I tried Slime and tubes before but the thorns managed to pucture. I'm thinking that having the tires filled isn't a good idea on an RTV. Anyone got an idea on preventing flats?