I get “ all steel “ (14) ply trailer tires.
Usually “ Hercules “ or “ Gladiator “.
An all steel trailer tire is less likely
to blow out from a side impact from
debris - kinds like a “ run flat “ tire.
This curb side tire had no air
but did not separate or damage
the rim.
I bought (4) new tires - (2) were good
to keep as spares
FJ