Best of my knowledge, all US market 225's had drum brakes. Some have converted to disks with 250 parts, but the drum was stock on the 225 so I'd say all the part numbers you see should be for the dished/offset rear sprocket.
As long as the bolts have the correct thread, I'd assume they'll work in the rear hub.
This shall pass, be still and know.
2006 XT225, UNI filter, ProTaper bars, MSR handguards, SS front brake line, Shinko 241's.