Created by Italian designer Gianluca Sada, the Sada Bike is a collapsible design with no hubs and no spokes. The compact bicycle collapses when pressed underneath the seat. When folded and latched, the frame is roughly the size and shape of an umbrella and has the look of a giant Swiss Army knife. Both the frame and the 26? wheels fit inside the accompanying backpack, allowing for maximum portability. The innovative design is currently a prototype, and the designer is seeking investors to bring this bike to the market.