Revived Trailer Tire Thread (formerly on the 5th Wheel Forum

I had asked about tire cracks before and did not get a definitive answer on what is tolerable and what is not. Today when I had all 4 tires off and I looked real good at them.

Here is one from the right side. This is not the problem bulging tire in the reply above. I am starting to get fine side wall cracks and a few splits in the tread.

Here is the DOT date


Some of the side wall cracks. They are real fine at this point but at the 4 year mark they are showing up.


Higher res here Hi res side wall



Higher res here: Hi res side wall 2

And tread splits


a close up


Another one


close up


When does one start getting concerned about these and start a change out? I was hoping for 5 years but don't know any more.

Any thoughts on when to start the change out process?

Thanks

John