Well, the 'Towmax' tires have been labeled 'BlowMax' . . .
If you have them, you may want to read all of the topic threads about them here in the forum.
I will be replacing mine this year before the camping season starts.
Far too many horror stories to trust them.
It is a shame that most trailer manufacturers use them on their products . . .
Funny that in the Heartland brochures they claim to "not skimp on the tires!"