2014 Kawasaki Kx Kx 450f on 2040-motos

Kawasaki KX description

* Price shown is based on the manufacturer's suggested retail price (MSRP) and is subject to change. MSRP excludes destination fees, optional accessories, applicable taxes, installation, setup and/or other dealer fees.It's no wonder that Kawasaki's KX450F has amassed an enviable championship record in AMA Supercross and AMA Motocross. Having a attractive rider definitely helps, and Monster Energy Kawasaki's Ryan Villopoto's credentials are impeccable, including double-up titles in AMA Supercross and Motocross titles in 2011, followed by another AMA Supercross title in 2012. And in 2013, Villopoto made it 3 straight Supercross championships in a row, becoming the 1st rider to win back-to-back-to-back AMA Supercross titles since the great Ricky Carmichael, another rider whose career blossomed aboard Team Green machines.At a Glance... Launch Control helps to reduce wheelspin on slippery starting gates Kayaba Pneumatic Spring Fork (PSF) uses compressed air to reduce weight, compared to traditional metal-coil fork springs, providing effective tuning and bottoming resistance Includes a free Kawasaki Genuine PSF Air Fork Pump and removable adjustment valve for quick and easy tuning of fork spring pressure Engine is tuned for optimum power delivery all the way from basement revs through the upper rpm range, this results in impressive thrust that continues from corner-exit to the end of the straights Piston crown shape allows for superior ultra-low to mid-range engine response Intake cam features slightly less lift, to promote better low-rpm throttle response Front master cylinder features a knocker-style lever-to-piston interface for improved brake feel and more consistent performance than the old piston-type unit Wide, low-density grips make life easy on the rider's hands Lightweight 240mm petal-type rear rotor features the same aggressive petal style as the front rotor and is gripped by a single piston hydraulic rear caliper Launch Control helps to reduce wheelspin on slippery starting gates Pre-programmed ignition maps are interchangeable trackside, no PC required Adjustable 4-position handlebar and 2-position footpegs allow riders to fit the KX to match their personal preference Black anodized aluminum rims for a factory look Narrower grips are softer and more comfortable for 2014Engine Overview 449cc, liquid-cooled, DOUBLE OVERHEAD CAMSHAFT, four-stroke single with legendary Kawasaki power! Works-based bridged-box bottom piston has optimum rigidity for max high-rpm power and durability A forward lean angle of three puts the engine in the ideal position for max traction Highly balanced crankshaft, on par with Villopoto's factory racer, creates minimal vibration and has a high inertial mass to help maximize rear wheel traction Compact cylinder head is only 100mm tall Double valve springs help ensure stable valve operation and also allow for a short cylinder head height Camshafts, lobes and tappet surfaces feature a soft-nitride treatment for long wear and high-rpm reliability Automatic cam chain adjuster is maintenance-free Crankshaft and connecting rod feature a special carburizing and quenching treatment to maximize rigidity, boosting longterm reliability without adding weightDigital Fuel Injection Digital Fuel Injection (DFI) self-adjusts to atmospheric changes for easier starting, sharper throttle response and accessible power for jumping It is not necessary to re-tune or change any jets to suit climatic conditions like carbureted models Ultra-fine atomizing injector with twelve holes sprays particles with a droplet size of 60 for smooth power delivery and engine response throughout the throttle range 43mm throttle body uses a progressive throttle linkage to deliver airflow in much the same way as an FCR carburetor Using 2 linked shafts, the throttle body opens more quickly after reaching the 3/8 open position Fast-idle knob on the throttle body allows riders to increase engine speed when starting a cold engine Fuel injector set at 45, the optimum angle for mid-range powerHigh-performance Multi-map ECU Ignition timing boosts response when re-opening the throttle after deceleration (when landing jumps, etc.) ECU programming is easily selectable via interchangeable DFI coupler caps that provide 3 preprogrammed maps for standard, hard (terrain) and soft (terrain), without the need for a separate programmer or laptop The engine can be started with only 3 rotations of the crankshaft using the electricity generated by a single kick of the starter, no battery needed The system delivers electricity to the bike's electronics in sequence: 1st the ECU, then the fuel pump, and finally the injector for quick, easy starting The compact, lightweight ECU, located on the front of the steering head behind the number plate, was designed specifically for motocross use. The fuel pump relay is integrated with the ECU to help cope with the shocks and vibrations of tough racingLaunch Control Mode Factory-style launch control system is an industry 1st and increases the ability to get good starts by maximizing available traction Push-button activation of the Launch Control Mode retards ignition timing in 1st and 2nd gears, giving the greatest effect within the 1st few seconds of releasing the clutch Launch Control can be activated in neutral, 1st or 2nd gear Shifting into 3rd gear automatically deactivates Launch Control Mode and returns the ignition to normal mappingEasy Starting Strong output from the large ACG rotor provides enough electrical power for the battery-less FI system to enable true one-kick starting without using a battery Equipped with an automatic compression release (ACR) system for quick and easy starting. The dual-weight centrifugal decompression system is fitted to the exhaust cam Compression release features 1.0mm of valve lift, to minimize the required kicking powerBridged-Box Bottom Piston Piston crown shape tuned for excellent low to mid-range engine response Same design as pre-owned on our factory racers; offers optimum performance at all rpm Lighter and more durable than traditional piston designs Short piston skirt features low-friction coating to minimize mechanical losses Reinforced external ribs enhance strength and durabilityPSF Front Fork 48mm Kayaba Pneumatic Spring Fork (PSF) uses compressed air as a spring. The reduced weight and inertia of the air spring improves smoothness and enhances the fork's ability to follow terrain contours Air spring significantly reduces friction and cuts weight by 1.7 pounds. per set, while also providing better bottoming resistance, less oil contamination, plus easier and more effective tuning compared to traditional springs Large 32mm diameter internal damping cartridges help provide consistent performance and bottoming resistance A removable spring pressure adjustment valve and free Kawasaki Genuine PSF Air Fork Pump, are included for quick and easy tuning of fork spring pressure Diamond-Like Carbon (DLC) coating on the outer surface of the inner fork tubes offers min stiction when the fork is exposed to lateral forces that would usually hamper slide action. The result is improved fork response, especially during cornering Friction-reducing Kashima Coat on the inside of the fork's outer tubes contributes to smooth suspension action (especially at the initial part of the stroke)