So what do us folks do that drive the speed limit of 75 mph on the Interstate do?  Seems like the minimum speed rating for car tires is 113 mph.  I bought a TrailManor, so I could tow at the various speed limits.  I have friends with pop-up campers that would never dream of limiting their speed to 65.
I can understand how those with large tall trailers might have to limit their speed.  I'm looking forward to the article, but it looks like a truck tire is the only answer, especially if you want a margin of safety.