Originally Posted by rockfordroo
Tireman thinks it's design, and I bow to his expertise, but think about this, too:
I'm assuming you mean YOU had 8 months and 1729 miles on it?
What is the date of manufacture? Where did you buy your TT from? It had to be delivered from Indiana to wherever you bought it and who knows how nicely they were treated on the way. (I see lots of them being delivered up through Illinois. The transport guy is doing 70+ mph down the interstate.)
There is little question that running a tire at speed above its rated limit is not good for the tire. The good news is that the new trailer was at it's minimum weight, so I would not lay blame at feet of delivery company (but they need to do a better job).
Tires should be able to run at rated load with full inflation much longer than 1800 miles. Tread separations are a function of the properties of the rubber compounds used around the steel and between the belts and tread. There are construction features (strips of Nylon) that can significantly improve the strength of a tine in the belt edge area. I see indication of that feature in this tire.
If I am reading the picture correctly we are seeing the top steel belt. This would indicate the weakness was between belts and tread. Again special compounds are available to ensure this bond is strong enough but in this case it wasn't.
Again. File a complaint with NHTSA on the "Tread Separation" You will need the RV VIN and the tire DOT serial. In the complaint indicate you have picture of failed tire. A single complaint will not get a replacement but if everyone (most?) that had a failure on this tire it might.
Early separations are usually an indication of design (specification) or manufacturing (incorrect mixing or formulation of rubber) error.
With Design based problem a large % of the tires would have similar failure. With Manufacturing it may be a "batch" (few hundred) made at the same time. This is why knowing the DOT is so important. If there is a spike in the numbers over a one or 2 week period it would point to factory issue. If there is a low umber but constant across most weeks of production then specification is probably the issue.
This thought process is how failure analysis is doen and root cause identified.