Tubeless tire (22.5") and tube type tire (20") size numbering systems are not equal, they are one size offset for each other...
These tires have the same diameter and can be rum side by side; I noted the rim width for the 22.5 only
8.25 x 20 = 9.00 x 22.5 (6.75" wide rim)
9.00 x 20 =10.00 x 22.5 (7.5" wide rim)
10.00 x 20 = 11.00 x22.5 (8.25" wide rim)
11.00 x 20 = 12.00 x 22.5 (9" wide rim)
Mike B
