I'M sure you've all heard of mountain bikes. They are for use on rough terrain. BMX, or Bicycle Moto Cross, bikes are often used in stunts and circuit racing. However, there are also BMX racing bikes for use on smooth roads and indoor racing.
http://us.rd.yahoo.com/dailynews/rss/search/bicycle+racing/SIG=11iqqou6f/*http%3A//www.rednova.com/news/display/?id=122226
http://us.rd.yahoo.com/dailynews/rss/search/bicycle+racing/SIG=11iqqou6f/*http%3A//www.rednova.com/news/display/?id=122226
