Our old 1978 Coachman Cadet 24 had four off-brand LT tires on it when we bought it . . . had that trailer for 12 years . . . traded it in a year and a half ago for our Trail Runner . . . and those same tires were on it when we traded it in.
Took it on 4-5 camp outs per summer on average, typically in the under 300 mile variety!
Never once had a flat and very rarely ever had to adjust the tire pressure.
Matter of fact, I never once worried about trailer tires until I got the down-low on the Blow Max's that came from the Heartland factory on our new trailer!
In some ways I miss the old beast . . .
I was thinking about naming it
'Trailer Trash' and having that painted on the back just before we moved up to the Trail Runner!