Cursed Days of Slipping Bike Chains and Clunky Transitions are Over
The Efneo Gearbox leaves labored gear shifting in its dust
The Efneo Gearbox is a three-speed bicycle gearbox that solves the slipping chains and clunky transitions common to more traditional bicycle designs.
Inspired by brands Porsche and Apple to focus on sleek presentation and simple interface, Efneo Gearbox replaces the standard three-ring displaced gear system with a single chain that can move seamlessly with a simple wrist flip. The chain doesn't move from gear to gear as a typical bike would, instead changing speeds of the chain to compensate for the three gear levels.