A bit more information on my tires for those asking. My tires are OEM and my coach purchased new at the end of 2011. I run 100 PSI all around with approx 30,000 miles on her. She has been stored indoors the entire time other than on excursions. The tires look great with lots of tread and no cracking on the sidewalls or uneven wear. It's only because they are 8+ years old that I am looking. As for the noise, the wife says it is road noise, I'm not sure since my ears aren't like they used to be. Thanks ...