I found out the hard way that there IS a tire made for the RV.
It has to do with the "tread" of the tire. Similar to why the tires on semi's that actually have a bald outer tread to PREVENT it from wobbling/tire roll on heavier vehicles. I.E. same as our RV's.
I bought the top of the line Michelin's. The tread was too aggressive and I lost the great handling I HAD on my RV. Because the outer tread flexes.
Brought my RV in for new leaf springs after putting on the new tires and the frame shop pointed that out to me too late. He took 2 fingers and moved the outer tread back and forth with no effort.:(
Which means that tread is flexing all the time going straight down the road under the heavy weight of the MH.
He than told me Michelin makes an RV tire to address that issue. News a little too late for me. I am sure other companies make them also.
IMHO and from my experience I think 99% of the posts we see about handling and all the after market stuff people slap on to improve steering/handling.......would be rectified by buying less aggressive tread on the tires that are bought for RV's.