Community Forums

RandD Hopey · 06-12-2018, 07:30 PM

Need to replace my Michelin’ 235/80r/22.5 tires and the only thing available at this time are sumo moto (spelling) 245/75r/22.5 or Cooper Roadmaster RM 272 which are 255/70r/22.5. Need to know the good and bad also will they interchange without an issue? Motor home is a 2008 south wind 37 c.

Bob Hyatt · 06-12-2018, 07:45 PM

Main issue is clearance and load-carrying capacity.

You can look up the specs for your Michelins (diameter and width as well as load range). Then you can find online calculators that will tell you the diameter, width for different sizes of tires. You need to stay very close to what you have to avoid interference. And NEVER go to a lower load range tire.

Bahamaniac · 06-12-2018, 07:47 PM

I am very happy with the Coopers I put on last year. We put about 10K miles on them and are very satisfied.

RandD Hopey · 06-12-2018, 08:01 PM

Are they the RM 272 and the same dimensions? They are an h load rating and the Michelin ones are a g. So should be good that way. They are about an 1/2 in smaller in diameter and just a bit wider. But looking at the ones on there now there is lots of space between the tires

FIRE UP · 06-12-2018, 08:32 PM

Quote:

Originally Posted by RandD Hopey

Need to replace my Michelin’ 235/80r/22.5 tires and the only thing available at this time are sumo moto (spelling) 245/75r/22.5 or Cooper Roadmaster RM 272 which are 255/70r/22.5. Need to know the good and bad also will they interchange without an issue? Motor home is a 2008 south wind 37 c.

RanD,
Well, if you take a look at the link below, you can compare tire sizes to your 235's. The subject hanging with Michelins or, changing to a much cheaper brand , any brand, that does the same job, handles the coaches weight and all that, has been discussed just a few times on here. Base on all the threads I've read on this and other RV forums, the majority migrate away from the Michelins for various reasons, mainly cost. I just did it a few months ago. Michelin is proprietary for the 255 80 22.5". Meaning, if you don't know, THEY'RE the only ones that make that size. So, for folks needing replacements, and don't know how to compare tire size, they simply pay the high price and, load up another set of expensive Michelins.

But, I used the tire comparison site and found the 265 75 22.5 Yokohama RY 103 to be an almost exact replacement of our junk Michelins. And the cost was seriously lower than what the Michelins were gonna be. So, yep, look around and do your shopping. You'll come up with tires that will work just fine in place of those Michelins.
Scott

https://tiresize.com/comparison/

theroc · 06-12-2018, 10:25 PM

I think you probably meant "Sumitomo" and they are a very good tire. The Sumitomo ST718 in the 245/75R-22.5 size is about the closest size you can get to the Michelins and what a lot of motorhome owners use to replace the Michelin 235/80R-22.5.

The Sumitomo ST718, just like the Michelin XRV, is also a commercial all position 14-ply load range G tire but costing significantly less than the Michelins.

Also good are the Toyo M154 and the Yokohama RY103 (as Scott mentioned) in that same 245/75R-22.5 size. However, the best bargain probably will be the Sumitomos. The Sumitomo ST718 should be priced the lowest of all and you're still getting an excellent tire from a Japanese-branded name ...which are my favorite, those three brands, i.e Toyo, Sumitomo, and Yokohama. I also like Hankook from a South Korean manufacturer.

Gary RVRoamer · 06-13-2018, 09:21 AM

Yes, the Sumitomo 245/75R22.5 is a fine tire and I would have no reservations at all about it.

However, I wonder why your choice is so limited? Many of the major tire companies make the 245/75R22.5 size. Goodyear, Toyo, Bridgestone/Firestone, Yokohoma, to name a few, and all excellent tires.

RandD Hopey · 06-13-2018, 03:01 PM

Must have been a real need for replacement tires here in AB Canada as those were the only two that immediately available. I had asked about the Toyo as that is what I run on my vehicles and they were sold out and not available I am having the Sumitomo’s installed tomorrow as we have a trip planned for the weekend.

MSHappyCampers · 06-13-2018, 03:03 PM

Have you considered buying Michelins through the FMCA Michelin Advantage program?

theroc · 06-13-2018, 03:23 PM

Quote:

Originally Posted by RandD Hopey

Must have been a real need for replacement tires here in AB Canada as those were the only two that immediately available. I had asked about the Toyo as that is what I run on my vehicles and they were sold out and not available I am having the Sumitomo’s installed tomorrow as we have a trip planned for the weekend.

I think you made a good decision. I don't think you can go too wrong with Sumitomos. As I mentioned previously, they are a bargain compared to Toyo and especially compared to Michelins. Michelins will cost a lot more regardless of where purchased.