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THE BIKE THAT BUILDS CHAMPIONS

Tough terrain won't stop us from winning. With championship-proven technology and tuning to take on every challenge, the KX450X motorcycle has what it takes to win outdoors. Get the off-road edge by riding the bike built to stay ahead of the rest. 

FEATURING
  • UPDATED 449cc 4-STROKE ENGINE
  • NEW CYLINDER HEAD AND NEW STRAIGHT EXHAUST PORT AND CENTER EXHAUST
  • NEW POWER MODE SELECTION WITH A HANDLEBAR-MOUNTED SWITCH
  • NEW RIDEOLOGY CONNECTIVITY - CHANGE ENGINE MAPPING WITH YOUR SMARTPHONE
  • NEW KAWASAKI TRACTION CONTROL (KTRC) WITH A HANDLEBAR-MOUNTED SWITCH
  • NEW BREMBO BRAKE COMPONENTS FOR INCREASED CONTROLLABILITY
  • ERGO-FIT® ADJUSTABLE COMPONENTS FOR RIDE POSITION OPTIMIZATION
  • OFF-ROAD READY SUSPENSION, 18-INCH REAR WHEEL, SEALED CHAIN, SIDE STAND

KX™450X
KX™450X
2021
KX450X
ADDITIONAL VEHICLE FEATURES:
  • Electric start
  • Coned disc-spring hydraulic clutch
  • Launch Control Mode
  • Easy engine tuning
  • Finger-follower valve actuation
  • Industry-leading slim aluminum perimeter frame
  • Powerful brakes
  • Slim, ergonomic bodywork
  • ERGO-FIT® adjustable ergonomics
  • Renthal® Fatbar® handlebar
  • Uni-Trak® linkage system
2021 KX™450X
ADDITIONAL VEHICLE FEATURES:
  • Electric start
  • Coned disc-spring hydraulic clutch
  • Launch Control Mode
  • Easy engine tuning
  • Finger-follower valve actuation
  • Industry-leading slim aluminum perimeter frame
  • Powerful brakes
  • Slim, ergonomic bodywork
  • ERGO-FIT® adjustable ergonomics
  • Renthal® Fatbar® handlebar
  • Uni-Trak® linkage system
KX™450X
All-New 2024
KX450X
ADDITIONAL VEHICLE FEATURES:
  • NEW lightweight aluminum perimeter frame for improved handling
  • NEW muffler position for improved mass centralization
  • NEW ODI lock-on grips
  • NEW quick-release side cover offers tool-less air filter access
  • NEW radiator shrouds shape for improved riding position
  • NEW rear fender
  • Coned Disc-Spring Hydraulic Clutch
2024 KX™450X
ADDITIONAL VEHICLE FEATURES:
  • NEW lightweight aluminum perimeter frame for improved handling
  • NEW muffler position for improved mass centralization
  • NEW ODI lock-on grips
  • NEW quick-release side cover offers tool-less air filter access
  • NEW radiator shrouds shape for improved riding position
  • NEW rear fender
  • Coned Disc-Spring Hydraulic Clutch
  • KX™ ENGINE PERFORMANCE
  • KX ENGINE PERFORMANCE
    POWER AHEAD

    The same championship-proven engine performance found in KX™ motocross bikes is what propels the KX™450X motorcycle. This updated 449cc 4-stroke fuel-injected engine delivers the type of hard-hitting power and a flat torque curve that encourages quick acceleration. Engine maps are optimized for cross-country racing and are now tunable using RIDEOLOGY THE APP KX on your smartphone to change power delivery to best suit riding conditions and personal preference. New handlebar-mounted Kawasaki TRaction Control (KTRC), Power Modes and Launch Control Mode buttons offer on-the-fly adjustments for ever-changing off-road conditions. Electric start makes starting the engine as easy as a push of a button. A coned disc-spring hydraulic clutch offers a direct feel, light lever action, and consistent performance. 

  • KX™ CHASSIS PERFORMANCE
  • KX CHASSIS PERFORMANCE
    GAIN FULL CONTROL

    Light and nimble handling is achieved thanks to the lean, lightweight chassis of the legendary KX™450 motocross bike. The new aluminum perimeter frame is lighter and features optimized rigidity balance for light nimble handling and increased front-end feel. The muffler has been repositioned for improved mass centralization resulting in lighter handling. The high-performance, race-ready suspension has been optimized for cross-country racing, especially on aggressive trails. A new Brembo front brake system featuring a large-diameter, semi-floating 270mm disc is paired with a Brembo caliper and master cylinder. At the rear, a 240mm disc is gripped by a Nissin caliper, offering a balance of stopping power and controllability. 

  • CROSS-COUNTRY CAPABILITY
  • CROSS-COUNTRY CAPABILITY
    TAKE ON TOUGH TRAILS

    The KX™450X motorcycle is built to meet the tough demands of cross-country racing. Cross-country wheels (F21"/R18") are paired with specific Dunlop Geomax AT81 tires developed for GNCC racing. A convenient side stand comes as standard equipment and a new quick-release side cover offers tool-less air filter access for quick and easy service.

    Previous model year shown.
  • ERGO-FIT® ERGONOMICS
  • ERGO-FIT® ERGONOMICS
    GET THE PERFECT FIT

    Slim ergonomics stem from a narrow frame and minimalist bodywork. New shrouds, side covers, and rear fender are firmer and eliminate hooking points, further facilitating rider movement. New ODI lock-on grips add enhanced grip feel and ease of installation. To help facilitate the perfect fit, the KX™450X motorcycle features ERGO-FIT® adjustability. Four handlebar positions and two footpeg positions allow you to tailor the KX450X riding position to your body size, riding style, and preference.