Bicycle racing is something that exists since middle of the 19th century. It is only at the start of the 20th century though that it took the form that it has at present. Some of the first bicycle races ever established still exist and are in fact considered to be the most prestigious worldwide. Of the many bicycle races held yearly, few of the more famous are the Grand Tours, the Olympic races and the Union Cycliste Internationale (UCI). Fast gaining popularity are the cyclo-cross racing and the mountain bike racing.
That's why I like it!