2000 Honda CBR600F4, CLASSIC F4 - The supersport CBR600F4 features race-bred power and Hondas Pro-Frame technology to produce class-leading performance, while maintaining the CBR600s legendary durability and everyday riding comfort. The bikes liquid-cooled DOHC 16-valve four-stroke engine provides incredible mid-range and top-end performance. Utilizing new casting technology processes, the CBR600F4s aluminum twin-spar frame combines strength and excellent rideability. The Pro-Frame design locates the lightweight extruded aluminum box-section swingarm via a combined pivot in both the frame and the rear of the engine, producing superb handling and high-speed stability with excellent control