I've had the snowblower since 2008 or 2009 and this is the first year I had a tire issue. The tire that broke the bead was in good shape, just broke the bead. The other one was real low, but looked good and felt good when I pushed on it. I'll park it as is this year and check the tire pressure once in a while. I think the tires just got low with the temperature change and I neglected to look at the psi and went by feel.