aftermath wrote:
I believe that tire failures are mainly due to overloading and/or underinflating.
Sometimes, but not always. A couple of months ago one of the 4 yr old off shore tires factory installed on my Coachmen suddenly split
on my driveway just after returning home from a camping trip. :E Tires were always checked regularly, always properly cold inflated to their rated 50 p.s.i., and because this trailer is just a 19 footer these Load Range C tires were
well below the trailer's maximum weight. Yet later inspection showed the steel tread had split about an inch, out of nowhere, for no apparent reason at all, no signs of any penetration by a foreign object - it just split. :M
I also think that many manufacturers will put a cheap tire on their trailers to save some money.
Manufacturers buy thousands of tires & wheel assemblies every year and will
always buy for the best price in tires that meet the minimum limits required. This shouldn't be so surprising - so too would you if you were buying millions in tires every year. ;) What many don't realize is that for simplicity a manufacturer will often spec the same tire & size for an entire series of trailers, from small to large ... that in turn means a smaller trailer will often have ample tire capacity while the longest, heaviest model in the series will use all of that particular tire's rating. As long as it meets minimum spec, it's considered acceptable, not "cheap".
