A bicycle A bicycle is a two-wheeled machine that is pedaled by the rider's feet. People A _________ bikes for hundreds of years. Historians disagree about USE the invention of the bicycle. Some historians think that Leonardo da Vinci B _________ a sketch DRAW of a bicycle in 1492. The first two-wheeled rider-propelled machine C _________ by INVENT Baron Karl von Drais de Sauerbrun of Germany. In 1817 he rode it for 14 km. D _________ frame was made of wood and this bike didn't have IT pedals. Nowadays there are different kinds of bikes. The mountain bicycle is used for riding on rough roads. It has E _________ than 10 speeds, wide tyres, and strong wheels. MANY