Most hubless bikes are just 3D renderings, but the Sada Bike could be headed for production. This futuristic bike even features a frame can be folded up in a single movement for maximum portability and then packed into a normal-sized backpack. It's a standard bicycle dimension with 26" wheels that are attached to the frame using an anchoring system. Continue reading for a video and more information.
According to Inhabitat, "The design focuses on the bike's space-saving advantages. Unlike most bikes, which usually get their strength from the tension in the spokes, the strength of the Sada Bicycle is put into the rim. This adds weight to the outside wheel, which can become a performance issue. However, the prototype is currently designed as a model for the city."