Tag Archives: CeramicSpeed

Meet Driven, An Innovative Chain-less 21-Speed Bicycle Drivetrain

Billed as the world’s most efficient drivetrain, Driven is an entirely new form of bicycle drivetrain. Created by Danish bearing maker CeramicSpeed in collaboration with University of Colorado’s Mechanical Engineering Department, this groundbreaking 21-speed driveline, called Driven, uses ceramic plates in place of the traditional greasy sprocket and chains, and derailleurs, to achieve transmission and gear change. How we describe it may not be as impressive. So we suggest you catch the video of the prototype and marvel at this new invention. Continue reading Meet Driven, An Innovative Chain-less 21-Speed Bicycle Drivetrain