Alberto Del Biondi concept bicycle
Alberto Del Biondi, designed a futuristic, innovative, concep bike which has no chain, wheels without spokes, and uses lightweight carbon and nivacrom (a lightweight steel).
The finished product weight is between 5 and 6 kg. Looking at the bicycle one might surmise that it is a prototype but in reality it is a finished product that combines design, lightness and technology.
The rear wheel is turned at the perimeter via a gear hidden in the frame. All cables are internally routed.