Look into a radial tire. I solved that problem on my 2 utility trailers years ago. I have a Tracker 175 w/70 Yam. This trailer had brand new tires when I bought it last year,but I watch the pressure and condition of tires each time I use boat(3 times a week). Wal Mart will not mount a car tire on a trailer tire rim but your local tire store should. I hope this helps.