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Old 07-19-2021, 04:49 AM   #1
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More wheel and tire options

The rims on my chassis (Spartan) are 22.5x6.75 six bolt rims. The tires are 235 80 R 22.5.

I've found that these rims are a bit harder to find and was wondering what my different options are.

What's the best way to determine if I can I go with a wider 22.5 rim, without buying one, putting it on, and turning the wheels?

Do bolt pattern adaptors/converters/spacers exist for large vehicles like ours?
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Old 07-19-2021, 08:21 AM   #2
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Location: North America somewhere
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I've never seen a 22.5" rim with only 6 lug studs, all I've seen have 10 lug studs. New ones are available though:
It seems the low-boy aluminum wheels are the ones hard to find: If you decide to look into these further I suggest semi-trailer junk yards.

Several different chassis mfgrs. used your rims:

Hopefully the Alcoa website will have more information:
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA." My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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Old 07-19-2021, 08:32 AM   #3
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Location: Cape Cod, MA
Posts: 1,560
I wanted to change to a larger front tire. Entegra didn't know and had me call Spartan who knew right away that I couldn't. Call Spartan.
Jeanie, Ed & Slade the GSD
Cape Cod, MA
2017 Entegra Aspire RBQ & Sierra Crew
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