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You're riding a bike with two different wheels of equal mass and radius. One has its...

You're riding a bike with two different wheels of equal mass and radius. One has its mass distributed like a hollow cylinder, and the other has its mass distributed like a solid cylinder. You notice that it's difficult to get your bike to move when you start pedaling. To make it easier to start moving, you decide to make it so that both wheels are the same. Which one should you replace, and why?

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