Recycling bicycling

To win the Tour de France you probably need an expensive, high technology, carbon fibre framed bicycle. But for more mundane urban cyclists, that well known composite cardboard could be the material to watch. An Israeli inventor has pioneered the use of cardboard for the production of bikes. The 10 kilogram cardboard bicycle, which cost around $10 to make, can carry riders weighing up to 220 kilograms. Perhaps Mr Armstrong would have even won on one of these?