Had a Goodyear Marathon blister up a good 1/2 inch and separate just mounted as a spare in front of trailer and tire had less than 30 miles on it.
JL, that is a common complaint about the Goodyear's I have seen on some other web sites. How long ago did that happen to you? I am wondering if the problem has been fixed. What tire brand are you using now?
It happend in 09 but tire was 7 years old, in 08 we had a flat in Reno, put the spare on and had another flat 20 miles later took the flat tire off put 90lbs in the tires and made it to Fernley on 3 tires, got the tire store to come out after hrs [$200 service call]
and put on 8 ply Carlisle, 2 plys are steel, 2820 lbs at 80 psi. Saved the looked like new spare.
An old racer friend said a lot of trailer tire failure is caused from sitting for long periods in one spot then towing long distances and if jacked up off the tires it would help.
JL222