That 40 pound wheel spinning at 2500 RPM reminded me of a shock I got many years Ago.
just like that and its fixings broke and it fell to the floor shaft first with the disk on top. It just sat there apparently precisely balanced and motionless except for a slight perceptive wobble. *I reached over to pick it up and only then noticed that it was still spinning like mad. So I decided to knock it over with a long pole
Big Mistake!
Try it with a bicycle wheel and see what happens when you strike the tyre with a 2 x 4