This chainless bike's a gear closer to revolutionizing the cycling world

Last year, we covered CeramicSpeed's Driven chainless drivetrain concept, a bike prototype that couldn't shift gears. 

CeramicSpeed recently announced that Driven is now not only rideable but can also shift gears thanks to a patent-pending technology that they consider an "engineering breakthrough."  Read more...

More about Mashable Video, Cycling, Bicycle, Bike, and Chainless

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