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I learned in physics class that solid wheels have a lower moment of inertia because the center of mass of the material is located closer to the hub (think of a skater holder her arms in and spinning). Technically, this should make the wheel easier to accelerate and lower the resistance of spinning the wheel. The do weigh more, so is this of any advantage ...


The UK National Cycling Centre FAQ (PDF) says: Why do the riders go anti clockwise? The Chariots in Roman times raced this way round, and athletic races and most other sports have followed in the same direction. The Straight Dope says: How do these things get started? I've gotten several letters asking why races are "always" counterclockwise, ...


Right lane drivers when taking a round-about by bike or car on the road do it counter-clockwise. I guess it was more natural for them to define it like this.


I prefer the cycling lore that it was decided by which gear of a Citroen 2CV you needed to be in to drive up the hill/mountain. For HC climbs you had to go up them in reverse. Scientific? Not so much. Perceived Gallic? Mais oui!

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