A crazy idea became a reality. One Chinese invented the bicycle with the wheels in the shape of pentagon and triangle. It is more difficult to ride it than a regular bicycle, it takes more efforts. On the other hand, it allows you to burn more calories)))
You've missed the point. The bike rides smoothly. The shapes of the wheels are curves of constant width, and the weight of the bike is supported on the *tops* of the wheels, not at the axles.
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