- Tread wear
- Dry rot
I use to believe that tire dry rot was something invented by the tire sales people. Rubber may crack over time but the tire is held together with steel and fiber strips - right?
My wife experienced the reality of a dry rotted tire flying apart while going down the highway. No one was injured, the vehicle was damaged, and the passenger was freaked out. I take dry rot seriously.
Some articles indicate that dry rot is only a problem if the cords inside the tire are showing. I know this is not true. The tire that flew apart on the highway looked fine except for the tell tale cracked rubber.