Germany, 01 June 2012. Bicycle designer Dieter (Didi) Senft sits on the, according reports by its builder, largest functional bicycle in the world in Pudagla,  Didi's bicycle is 7.80 meters long, 3.70 meters high, with a wheel radius of 3.32 meters and weighs 150 kilograms. Up until now, he has had 17 Guiness Book records. The bike is part of a special exhibition in the museum World of Inventions in Pudagla on Usedom Island.