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 The Science of Cycling  Introduction What is the Science of Cycling?
 The Wheel Why do road bikes have thin tires, while mountain bikes have fat tires?
 Drives & Gears What is a gear ratio? And how do gears help make the bicycle so efficient?
 Frames & Materials What are the best materials for frames? What are the best designs?
 Braking & Steering How do you stop and steer a bicycle? What forces keep the bicycle from falling over?
 Aerodynamics How does drafting help a cyclist? What is skin friction?
 Human Power Why is the bicycle the most efficient way to travel? How do your muscles work?


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