(2) Trailer tires (and RVs tires in general) do not get regular use (exercise). Instead, they sit around getting stiff and flat on one side and the anti-aging chemicals in the rubber do not get spread around. Then they get taken out on the highway and run hard and hot on the highway, usually in hot summer weather. And sometimes on rugged roads too (campground access roads). This is the worst style of usage for a tire, according to tire manufacturers, and leads to a failure rate greater than average for all tires. Some people also feel that long exposure to sun (UV damage) and contact with the ground or concrete will also cause tire damage while it sits. I don't see any meaningful difference vs passengers cars, though, and they routinely last 4-5 years or more.
We've had Goodyear Marathons for 5 years, now on our second set. We have had no failures. The above posted information indicates part of the reason our Marathons have worked well for us.
Part of the reason could be... lots of tire exercise.
Our Marathons rarely sit for long. The set we have now are a year old and have been rolling for probably 300 out of last 365 days. In general we're on the road over 200 days a year.
As well tires "run hard and hot on the highway, usually in hot summer weather"
are more prone to failure.
In general our tires don't get too hot.
Heat is generated by tire flexure. As tires roll, the tires continual goes from flat (contact with the road) to round. The faster you drive the more flexures per unit of time and the higher the tire temperature. We are typically driving at speeds under 60 mph.
The amount of tire flexure is also related to tire pressure and trailer weight
. We try to keep our trailer light
, 2200 lbs on the axle
and tire pressures set to maximum.
As well, we tend to drive between 8 AM and 1 PM, the cooler portion of the day, rarely going more than 150 miles in a day. Over the last 3 months we have only driven 150 miles once, often moving 30-50 miles between camp sites.
Lastly in our travels we rarely drive in hot weather, minimizing our travels during the summer months unless we're going North for a summer trip.
Like some on the site we have pressure and temperature transmitters on our trailer tires.
Our experience. Safe Travels