The Zero Bike was designed in 1988 (!) by Makota Makita and Hiroshi Tsuzaki, then students at Art Center College of Design in Los Angeles.
Rather than spokes around a hub, this concept bicycle has wheel rims cradled by magnets, using the principle of magnetic superconductivity, also used in high-speed trains that are suspended above rails.
Source: minimalissimo.comAdded: 4 September 2013