Quiet and smooth riding tires

New tires are most always a little quieter.
I don't know if anyone provides noise numbers on rolling tires on a MH.
The Michelins we put on, the front, ride very quiet and much smoother than the GY670s. The sidewalls have a little more flex. Doesn't mean all Goodyears are noiser than others or others are noiser than the Michelins.

I like toyo tires. Had them on a gas and now a diesel.

For years in tire tests the quitest tires have been the most expensive .
Michelin
Highway tread .
i have a set of 265/75r16 LRE Michelin LT with 60,000 miles on a duramax .
they have stayed quiet , round , worn evenly and are not quite to the wear bars .
There are some threads on this forum about Michelins .
other owners report similar
Other top tires are also expensive : Continental and Bridgestone .
I have to keep my rig longer to have a lower cost per mile .
If I was planning to sell I would buy the cheaper tires .

IMO, a quiet tire is dangerous when the roadway is wet or icy.
I would rather put up with a little tire noise and have excellent traction.
The motorhome, truck, and Jeep all have M&S traction tires.
I have had good luck with Cooper and Kumho tires.

We've had good luck with Hankook (replaced original tires in 2007), and are now going with a Cooper tire (1/2 the cost of Michelin or Goodyear). My personal opinion is to go with a less expensive tire, but it all depends on your wallet.

Goodyear RV tires.