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 you're a street rider or a racer, this bike packs the kind of potent strength that will satisfy even the most discriminating enthusiasts.Key Features • Lean physique, low mass, forceful power, controllable power delivery and precise overall control • 599cc inline-four with DFI® is lightweight yet powerful • Fully adjustable front and rear suspension includes the Showa Big Piston Front fork (BPF), which offers fantastic wheel and chassis control • Lightweight aluminum chassis places the engine in the ideal location for excellent handling and rider feedback • Radial-mounted front brake calipers and radial-pump front brake master cylinder offer superb braking power and control • Race-quality adjustable Öhlins steering damper comes standard • Slipper-type back torque-limiting clutch offers quick downshifts without chassis agitation • Named one of Cycle World magazine's 10 best bikesLightweight Engine • Camshafts are made of chrome-moly steel • Lightweight magnesium engine covers are standard • Lightweight top injector mounting plate • Lightweight transmission gears and gear dogs • Lightweight oil pump and starter gears • Inlet pressure pulse monitor does away with cam angle sensor, further contributing to lightness • Cassette-type transmission makes it easy to quickly swap gear ratios, reducing set-up time at the trackMassive 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 performancePrecise 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 efficiencyLightweight Chassis • Twin spar aluminum frame is both lightweight and rigid, and places the engine in the optimum position for superb handling and rider feedback • The sub-frame is a two-piece aluminum die-casting consisting of a front and rear section • The lightweight sub-frame is very narrow for a compact and slim rear end • Intake resonator box and supports for the instrument panel and mirrors are unitized with the ram air duct, contributing to weight savings and increased rigidityTuned Chassis Balance and Mass Centralization • Frame stiffness around the swingarm pivot and the rear engine mounts optimizes front-rear rigidity balance • Engine is rotated forward around the output shaft for steeper intake angle and excellent CG • Exhaust layout with a short side muffler keeps the weight low • Exhaust pre-chamber further contributes to mass centralizationErgonomics and Chassis Feedback • Seat-peg-bar relationship places handlebars close to the rider; bars are angled for a highly intuitive and comfortable riding position • Fuel tank is flared around its top, similar to the ZX™-10R, providing a large contact patch for excellent rider feedback • Slim-waisted fuel tank makes it easy for the rider to grip the tank with their knees, or to hang off in turns • Sculpted seat allows the rider to shift their body far back on the rear seat step, helping to redu