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Cable and Housing Friction in Mechanical Actuation

How grit, kinks, and aged cable build friction between an inner cable and its housing so the mechanism it drives — a dropper post, derailleur, or brake — turns sluggish, and how cleaning and lubrication restore it.

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Cable Housing Friction in Mechanical Dropper Posts

How friction between an actuation cable and its housing (worsened by grit, kinks, or old cable) causes a mechanical dropper post to feel sluggish or fail to return, and how fresh housing restores cri…