You have 24.5 rims which mount on 20" daytons, or on 22" daytons?
In every case I have ever seen the 24.5 daytons were on 22" dayton centers.  11-24.5 is the same dimensions as a 10.00-22, just as an 11-22.5 is the same dimensions as a 10.00-20.

All the 25" floater wheels I have seen fit 20" daytons but there is no reason they couldn't have just as easily been cut for 22".  It's just that 22" daytons are pretty much dead....hardly ever see them on anything anymore.