[Tim Hancock]

Some random thoughts on trailer tires I have developed in my years of multiple trailer ownership:

Some trailer tires can come in different load ratings for the same tire size. On most of my trailers, I always opt for the higher letter rating when I can (I will pick an E over a C rated tire).

My tandem axle race car trailer which I used EVERY Saturday night for 4 summers never experienced a tire failure and weighed about 6000 lbs. I drove as fast as 80mph some days if late for the races. My tires were just some relatively cheap off brand.

Heat from tire flexing due to underinflation is the biggest killer of most trailer tires. I ALWAYS run my boat and my race car trailers tires at the max inflation stamped on the sidewall. (Depending on the tire rating and size, the proper inflation can often be anywhere from 50-80 psi) The max inflation number is the only number that the manufacturer recommends for max load rating. I often have heard of people only inflating their trailer tires to 32 psi like their old cars.... Then they wonder why they blow trailer tires so often.

Another killer of OLDER trailer tires is UV degradation from leaving trailers sit outside in the sun for long periods of time. My trailers always sit inside when not in use so I don't have to worry about that issue.