My Haulmark which I purchased in 97 was equipped with Goodyear Marathons. After two years or so a sizable egg appeared on the sidewall..... Goodyear replaced all four tires no questions asked (recall). As I remember the score card read like this. 2 sets of GY Marathons, Carlisle (needed tires NOW.... tread was coming off GY, noted at the track.... might have been three to four years on those, I was in denial about them lasting), cheap Chinese tires two years, my first set of Maxxis 10 plys... two years, second set of some sort of 10 ply, two years...

My present trailer has "HI RUN" 16" tires on it. Max psi listed at 90, but I run 80. The trailer was originally equipped with some other Chinese tire.

I hate trailer tires....