Who invented bicycle - Cycling

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http://www.businessnewsdaily.com/8791-how-to-file-patent.html

The derailleur mechanism, as its name implies, 'derails' the chain from one rear sprocket to the next, either larger (for a lower gear) or smaller (for a higher gear). It is spelt that way as it is a French invention.

Nothing--- until you provide addition information such as make ,model , year and what it is on

Before dirt was invented

Albert Stallion invented the whiteboard while working for Alliance in the 60's.

The first sidecar was invented in a contest in France in 1893. It was a sidecar for a bicycle.

Hi siddiguiabdu !

From Wikipedia:

Being the first human means of transport to use only two wheels in tandem, the Draisienne, Laufmaschine, or dandy horse, invented by the German Baron Karl von Drais, is regarded as the forerunner of the modern bicycle. It was introduced by Drais to the public in Mannheim in summer 1817 and in Paris in 1818.[3] Its rider sat astride a wooden frame supported by two in-line wheels and pushed the vehicle along with his/her feet while steering the front wheel.

Hope that answers it,
omerk.

Hard to put an exact date on it because BMX evolved from kid's mimmicking their motocross heroes on dirt hills using 20" bikes (typically Schwinn Stingrays).

The first bicycle made specifically to mimmick the motocross riders that early BMX riders were mimmicking was the Yamaha Moto-Bike in 1973.

BMX became "official" in 1974 when George E. Esser founded the NBL, which officially sanctioned BMX races.

The first official BMX bike (bike made specifically for the sport of BMX), with the frame design as we know it today, was in late 1974 with the introduction of the Redline Squareback.

Mother nature invented bacteria.....

Anton van leeuwenhoek discovered it.

hope i was helpful