A bicycle, often called a bike (and sometimes referred to as a "pushbike", "pedal bike", "pedal cycle", or "cycle"), is a human-powered, pedal-driven, single-track vehicle, having two wheels attached to a frame, one behind the other. A bicycle rider is called a cyclist, or bicyclist.
Official site of Cannondale Bicycles, maker of Road Bikes, Mountain Bikes, and Recreation Bikes.
Official GT Bikes website featuring GT Bicycles brand mountain, bmx, road, and urban bikes
