Future Bikes: 10 Bold, Brilliant Bicycle Concepts

Cube Urban Street Bike Concept
This fierce, folding fixie-style bicycle concept adds an entirely new frame philosophy to high speed bike design. The Cube Urban Street Bike Concept ditches the seat tube and top stoy sections of the traditional bike frame for this three-piece system that leaves the back wheel floating. Technically, this design could remove a significant amount of weight from the modern bicycle, but this design appears a bit bulky. Bulky or not, sexy it is. Can you imagine the heads you’ll turn carving up the pavement with this thing? We hope Cube has addressed stiffness issues, as working without those rear tubes can be problematic.