The flywheel example says it all. What happens when a drag car lifts the front tires? Does it care about moving them now? just unsprung weight now. That's extreme.
How about this: I have many bicycles. I'll find the heaviest wheel and tire combo I can, and put it on the rear. Find the lightest and put it on the front. Then swap weights. I'll have more than one person ride the bike, to get a better poll basis. I'll have a cadence meter set to record across the test track to use as a standard deviation.
Would that be good enough for the disbelievers?
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