2011 Kawasaki Ninja ZX -6R, REDUCED!!!!!!!!! HURRY!!!!! WONT LAST!!!!!! 2011 Kawasaki Ninja® ZX -6R The Top Contender in the Middleweight Category Power. Speed. Handling. Dominance. The Ninja® ZX -6R packs all this and more underneath its 599cc engine, twin spar aluminum frame and advanced Showa suspension. Whether youre a street rider or a racer, this bike packs the kind of potent strength that will satisfy even the most discriminating enthusiasts. Features may include Massice Mid-Range Performance Double-bore velocity stacks feature inlets at two different heights for increased performance in both the mid and high-rpm ranges. Cam and tappet nitriding enables high-load cam profiles for maximum performance. Crown-finished pistons. Molybdenum-coated piston skirts for reduced friction and engine break-in. Low-tension piston rings reduce mechanical losses. Advanced cam chain guides stabilize chain motion and further reduce mechanical losses. Exhaust collector layout contributes to superb low and mid-range performance while maintaining high-rpm performance. Precise Throttle Control Cylindrical guides in the top of the air cleaner box ensure accurately sprayed fuel mist from the secondary injectors into the intake funnels, improving combustion efficiency. Long throttle bodies between oval sub-throttles and round main throttles yield a smooth intake transition for reduced inlet turbulence and increased efficiency. Advanced cylinder porting delivers excellent cylinder filling and scavenging. High-current secondary coil circuitry for optimum combustion efficiency.