With all the problems with Michelin XRV's and their lack of support, no way will I buy another Michelin. A big price does not always mean a good tire. XRV's that blew up sitting still and GY G670 and their Rivering problems comes to mind.
OP, for the couple dollars more I would have gone with the Firestones.
This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
I would have went with the Yokohama's. they are a GREAT tire. and they stand behind the product. I run them on my Tractor-Trailer and get excellent wear and life. Tires play into fuel mileage to and The yokohama ECO tires gained me 1/8 mpg.
I had a very bad experience with Michelin, Michelin XZE steer tire with 24000 miles, sidewalla zippered @ 70 mph. that was not fun, No more michelins here! I know im talking tractor-trailer, but its the same size tire your running on your RV
I just replaced my Michelin XRV 255/80R22.5 Tires with these same Sumitomo 275/70R22.5 tires on our 2005 Meridian. Date codes on the Michelin's were 2004 (original tires), and I was getting worried. I went up a load range - from G to H. I got the 6 Sumitomo's mounted, balanced, out-the-door for just under $2800. Dates were 0212. I was quoted $3900 for Michelin's under the FMCA plan. I have only put 60 miles on them, but the ride feels like a new motorhome. We're putting a couple hundred on them the end of the month.
Tom & Norma
2005 Itasca Meridian 34H
2006 HHR 4-Down, Blue Ox with Brake Buddy
"They only downside, was the RV felt a bit twitchy" You may have too much air in them as this will make a new tire not handle right. Many truck tire places put the max amount of air in them which is fine for a semi but not a MH. After you put a 1000 miles on them the higher pressure does not make as big a difference.
I'm glad to hear this. I just searched this forum for Sumitomo because this last trip I had to constantly adjust steering because of what I'll call wandering. I put the Sumo's on a year ago and noticed a little of this wandering but for this trip I bumped up the air pressue on the front tires another 5 lbs to 95. Load inflation table says I need 80 but with the 110 tire rating, I thought a little more would be safer, especially since my axles were not weighed on each corner. On the trip hhome I'll try something between 85 and 90. I'm running the ST719 245x75x22.5, load range G on a Workhorse W24 chassis.