While shifts between the sprockets on a bike's cassette are generally quite fast and crisp, going between the chainrings up front is definitely a slower, more awkward affair. In an effort to make things quicker and easier, Poland's Efneo has developed a 3-speed planetary gearbox to take the place of the front derailleur. .. Continue Reading Efneo gearbox is made to replace a bike's front derailleur
Section: Bicycles
Tags: Cycling, gearbox, Transmission
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