Originally Posted by Flinstone

Of course it would force the frame down at the bosses, and this would be countered by an upward force at the hub. That's the whole point.

If you hold a wheel in your hand with a stick through the hub. If you spin the wheel so it spins away on top and grab it with your free hand on bottom to stop it, the wheel will try to roll away from you off that bottom hand, but you will counter with an inward resistance (force) at the hub. The two forces are transmitted through the spokes. And all this even happens without any net force on you at all (do it on roller skates, you won't go anywhere).

You might have been joking that my argument is liking picking yourself up by your feet, but if so, you were very wrong (well my argument was like that, but with full awareness that the very real force involved in that effort sums to zero, and yet does stress your arms).