How Derailleurs Work

By Frank Berto

This eArticle is the 14th chapter of the author's masterpiece -- The Dancing Chain, a detailed history of the development of the derailleur bicycle. "How Derailleurs Work" explores the technical nitty gritty that's so critical to the smooth operation of today’s drivetrains, including front and rear derailleurs, shift levers, freewheels, chainrings and chains.

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