How often do you guys have to replace your tires? I have a duel axel trailer and the sidewalls wear out and start dry rotting. I have cracks in the sidewall on all four tires and they are only 2 seasons old. The tread is in excellent condition and I check pressure every trip before I leave.

How much should I worry about the cracking showing on the side walls? With only two years old and a duel axel trailer I was kinda figuring on pressing the issue this year and "when or if" one blows replace them all. I figure as long as I make sure the spare is good I should be ok.

I know alot of you guys have way more experience than me so please speak up and tell me if I'm making a mistake.

Jake