Which is faster, a heavy wheeled bike or a heavy framed bike, both bikes weighing the same?

Question

It's about the "rotating mass". I think at speed, they would be the same. The difference in acceleration not noticable.

Answer 1

For cycling time trials during the Tour de France or the Olympics, bicycles with light frames and relatively heavy wheels are used on flat courses. (uphill light wheels and light frames are of course better)
Theoretically the speed seems to be determined by the air resistance and by the resistance from the tires with the road. I don't think these forces are different in the two cases.

However, heavy wheels lower the center of gravity, thus giving better stability. The stability is further increased by the gyroscopic forces on the rotating wheels.
Therefore heavy wheels are usually better.

Answer 2

The total kinetic energy of the bike is translational KE plus rotational KE. Given the same amount of energy, the heavy-wheeled bike would require a larger share of that energy as rotational, so it would be slower than the heavy-framed bike.

Answer 3

Seems to me that it takes more effort to move a heavy wheel than a lighter wheel. If the ligher wheel is attached to a mass, I think the lighter wheel has less resistance to rotation than a heavier wheel attached to the lighter mass. So, I'd vote for the lighter wheel, heavy bike being easier to accelerate than the heavy wheel, light bike.