Operator error:
- failure to inflate to correct psi.
- failure to regularly check the psi and air up/down as needed.
- failure to stay below 65 mph.
- failure to slow down for potholes and bad bumps.
- failure to periodically inspect for damage/defects & abnormal tread wear.
- failure to avoid running into curbs.
- failure to protect from UV rays.
- failure to stop and replace a tire when known to be down on psi.
- failure to replace tires when at replacement age/mileage.
- failure to determine if any tire(s) is overloaded.
- failure to use a TPMS. (not a guarantee but way better than not using one)
ST tires are different from LT tires and need to be treated differently.
Problem is, when anyone buys a TT, neither the dealer or RV manufacturer instruct you how to take proper care of ST tires. No brochure from the tire manufacturer either.
For some excellent info. on RV tires, google "RVtiresafety".