Do you like to ride a bicycle? Then, you probably prefer lighter bike, because it is easier to drive. A German called Gunter Mai, made the world’s lightest bike. It is heavy only 2.8kg. With this bike Mai, logged over 20,000km. If you ask yourself how looks this bike, take a look on those images.

Source:
http://www.tririg.com/articles.php?id=1035_Worlds_Lightest_Bike