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Old 01-14-2014, 07:23 PM   #1
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Tire size calulator

My motorhome calls for Michelin 275/80/22.5 tires. I was told that 295/75/22.5 were a replacement for my original tires. I went to this site to see what difference in size, mile mph were.

Tire Size Calculator - Compare Tire Sizes

2008 Thor, Four Winds Mandalay 40G. Cummins 400 isl. Freightliner chassis
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Old 01-14-2014, 07:32 PM   #2
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Compare load capacity as well.

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Old 01-14-2014, 11:59 PM   #3
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You're absolutely right. I use the same calculator.

Last month, I put two new tires on the front of our coach. The original size is 295 75 R22.5 . The dealer almost installed Michelin 275 80 R22.5 . I insisted on the original size tire. He had Bridgestone R280s in the original size, so that's what I bought.

Using the calculator, I now realize that the dealer was correct. Having said that, I am very pleased with the Bridgestone R280 tires.

Jim & Kate
2016 Creekside 23RKS, 2014 Ram 1500 Eco Diesel
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Old 01-15-2014, 04:22 AM   #4
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When changing tire sizes, it's also a good idea to check spacing between duals.
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