Yamaha YZF600R

High Quality Content by WIKIPEDIA articles! The Yamaha YZF600R (known as the Thundercat in European markets) is a 599 cc sports bike made by Yamaha from 1994 to 2007. While similar in style to its sibling, the YZF-R6, the 600R maintains some significant differences, including a less aggressive posture, lower revving and higher torque producing motor, a large 1 piece seat and a steel frame rather than aluminium.