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Old 10-16-2018, 04:31 PM   #1
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Join Date: Apr 2013
Location: Eastern Passage, Nova Scotia, Canada
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motorhome tires

I have a forest river Georgetown 38' class A with 235/80 R 22.5 XRV tires with a speed rating "G" by Michelin. Can some one advise me what the load index is for these tires? I need some new tires and have to know the load index to order some. Where is the index found on the tire? I looked on mine and can't see it Also do I need to replace the Michelin tires with the same brand?
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2010 FR Georgetown 373DS w/'13 Fiat 500 toad
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Old 10-16-2018, 04:55 PM   #2
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Location: Eastern Ontario, Canada
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My rig came with Goodyear G670 RV tires, and they performed flawlessly.
When they approached 7 years, it was time to replace them....not because they were worn out, but because of their age.

I shopped around between these and Michelin XRV tires, both of which have been found as common OEM tires on a variety of motorhomes. In the end, the Michelins were a significant saving through my supplier, and thatís the only reason I changed over.

Hereís a link about your present tires. Maybe you have G rated for load.....not speed. Just sayin.

https://www.michelinrvtires.com/en_C...or/#!/info/xrv


I try to save money whenever possible.....but I wonít short change my way with the cheapest tires or brakes. Too much riding on them.
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Old 10-17-2018, 10:41 AM   #3
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Followed the link given and came to loadindex
134 for single load and 132 for dual load .
But max speed of tires 75mh / 120kmu.
So if you find another tire with higher loadindex in same sise and G load 110 psi , it can only be because max speed of tire is lower , fi 110kmu/69mpu. For that speed it would give 2 li steps higher so 136/134 . And american tires give even 4 li steps lower for dual then single.
In fact , they are all the same, but law in Europe, and I think also in America, is that max speed of tire must be same or higher then max technical carspeed. So find that for your motorhome, to know if alternative tires are allowed.
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