The Honda CBR600RR is a powerful and reliable sports bike that is perfect for the experienced rider. Featuring a liquid-cooled, four-cylinder engine, the CBR600RR delivers a smooth and responsive ride. With a lightweight aluminum frame and a low center of gravity
From Wikipedia
The Honda CBR600RR is a 599 cc (36.6 cu in) sports motorcycle made by Honda in the CBR series since 2003. The CBR600RR is marketed as Honda's sports bike model for the middle-weight class.