[Virginia Deacon]

This bulletin says the speed limit on Marathon ST tires is 65 mph; at speeds from 66 to 75 mph, COLD tire pressure must be increased by 10 psi - not to exceed the psi limit on the side of the tire. The bulletin doesn't differentiate between 14" and 15" tires.

I believe that overloading, excessive speed, and wornout tread on tires all contribute to risk of blowouts. Also, failing to lubricate the axle bearings each season, will add to risk of failure due to overheating.

Last year, I bought a laser thermometer gun to check the axle and tire temperatures at gas/rest stops (Of course, as soon as I stop, the cooling airflow stops and these temperatures start to climb.).

Maybe - as mentioned in the postings - it's not a systemic problem with the tires, but a wake-up call for us to pay closer attention to our responsibilities.

Happy Camping!