Mastering the links

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Iain Treloar runs you through the process of breaking, sizing and fitting a bicycle chain. Chains are beautiful in the simplicity of their function, but surprisingly complex in their construction. Each link consists of a matching pair of outer and inner plates, two rollers and two pins. A standard derailleur chain will have approximately 57
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How’s your chainline?

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Keep your chain as straight as possible and your derailleur gears will change more smoothly and need less maintenance. Simon Vincett offers a lesson in easier riding. The bike chain works best when it is straight but it is its useful ability to run at an angle that makes derailleur gear systems possible. The art
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