A 22.5 tire fits a 22.5" rim, that is all, and same goes for all other tire sizes, a 22" tire only fits a 22" rim

He was saying that 20" tires and wheels have been replaced/updated with 22.5" and so on for the other sizes.

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-