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Open Roads Forum  >  Class A Motorhomes

 > Alternate Size Tires for 99 Discovery 34Q

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kidkasha

Ventura County

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Posted: 05/12/12 01:32pm Link  |  Print  |  Notify Moderator

Been searching for Micheleine size 235/ 80 R22,5, but am wondering if another size and brand could work. Tires are expnsive but necessary. Any suggestions

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Posted: 05/12/12 03:38pm Link  |  Print  |  Notify Moderator

I have been told 2.45/75 is a good replacement easier to find and less expensive. I don't need tires yet and haven't really looked into it.


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kidkasha

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Posted: 05/12/12 07:14pm Link  |  Print  |  Notify Moderator

will they substitute for 235/80R22.5 Any other suggestions ?

Fleet Man

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Posted: 05/12/12 10:32pm Link  |  Print  |  Notify Moderator

Go to some of the truck tire web sites and compare tire specs with your 235/80 R22.5 for Revolutions Per Mile, cross section width and load capacity. Michelin seems to have certain tire sizes captive. Find a tire from another manufacturer that meets basically the same specs. Note, they will usually be of a different aspect ratio such as /70 or /75 rather than /80. Match the rev's per mile as closely as you can to avoid speedometer readout problems.

Make sure your rims can accomodate a wider tire if necessary


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mllk3rd

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Posted: 05/12/12 11:05pm Link  |  Print  |  Notify Moderator

I had the 235/80-22.5 on mine and changed out to Toyo M154 245/75-22.5 last year, almost identical in size. Michelin is the on manufacture that makes that size.

Jarlaxle

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Posted: 05/13/12 05:28am Link  |  Print  |  Notify Moderator

kidkasha wrote:

will they substitute for 235/80R22.5 Any other suggestions ?


A 245/75R22.5 and Michelin's weird 235/80R22.5 are the same size.


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TexasShadow

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Posted: 05/13/12 05:50am Link  |  Print  |  Notify Moderator

Check out 255/70R 22.5 great carry capacity and you can buy at any truck stop that sells tires. My coach came with 245/75r 22.5 I use Toyo 255/70R 22.5


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kidkasha

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Posted: 05/16/12 09:31pm Link  |  Print  |  Notify Moderator

Someone suggested go to Consumers Union for best tire info. Does anyone agree. Has anyone bought Samson or Sumotomo. The tires are costly, and I wan good value

kidkasha

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Posted: 05/16/12 11:41pm Link  |  Print  |  Notify Moderator

Would 255/80R/22.5 tires fit instead of 235/80 R22.5

wolfe10

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Posted: 05/17/12 06:46am Link  |  Print  |  Notify Moderator

kidkasha wrote:

Would 255/80R/22.5 tires fit instead of 235/80 R22.5


Those are considerably different in size.

Go to: http://www.michelinrvtires.com/michelinrv/toolbox/reference-material.jsp

Lots of good information, including tire dimensions.


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