----22.5" (tubeless) Dayton rims come:
6.00" wide, may or may not actually exist
6.75" wide, but very rare
7.5", less common but still out there.
8.25", most you will find are this wide.
9" (and wider yet), still common.

If you need to run a relatively narrow wheel and tires like the 7.50x20 or 8.25x20 you may need to stick with 20" rims, unless you first check and see if the narrowest 22.5" rim you can actually find will fit OK.


To answer some of your original questions about what tires fit what rims follow along these links.
Sticky thread about wheels and tires
https://www.stovebolt.com/ubbthread...els-and-tires-what-to-do.html#Post867617
Tech Tip referenced (big link) in that thread also found in tech tip menu top right of every forum page.
https://www.stovebolt.com/techtips/wheels/
Accuride catalog linked in tech tip.
https://www.accuridecorp.com/files/2012/10/Accuride-Wheels-Product-Catalog-Summer-2011.pdf
Scan on down to pages 45, 46, 47, and particularly page 48 where you can see recommended rim widths and alternate widths suitable for various tire sizes.

Furthermore, each tire manufacturer list appropriate rim widths for each tire they make. So if you already have a specific tire in mind also check what rim width they want you to use.

Grigg


1951 GMC 250 in the Project Journals
1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-