Can we talk about "center bore" for a minute?

69_340_GTS said

114.5mm vs 4.50" is only a difference of .008". That's why it works.

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Thanks, professor! :D
Was anyone confused as to why it "works"?
Yep. It's close enough that you could probably get away with it 992/1000 times. I guess my point is that if you're working on the assumption that tolerances are imprecise enough to pull this off, the argument for a hub-centering ring is probably a bit stronger.