I don't have problems very often. I spent a lot of time looking at trailers and talking to a custom manufacturer and other dealers when I upgraded from a 12k trailer. I also mimic what my Bobcat dealer uses.. They have done some maintenance, of course, but have many years of high miles on several trailers. I get my brakes and bearings packed every year at the same time and keep up all maintenance items including air pressure. It's a PITA to do all that on 3 trailers being a one-man show but I need that stuff to last and foremost, be safe on the road.