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Designer bicycle for $ 20.
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Cardboard periodically used as a material of the body design of speakers, players, and even digital cameras. However, for something more serious, he is regarded as a rare. An Israeli engineer Izhar Gafni for 18 months developed a design necessary rigidity to the bike frame made entirely of cardboard. Cyclists out of this environmentally friendly and cheap material weighs only 9 kg. Top frame lacquered for better water resistance and appearance. Solid tires are made from recycled rubber, and instead of the traditional chain belt drive is used.
Source: mirfactov.com/