Tough terrain won't stop us from winning. With championship-proven technology and tuning to take on every challenge, the KX™450X motorcycle has what it takes to win outdoors. Get the off-road edge by riding the bike built to stay ahead of the rest.

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

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.

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

Specification:

Power

• Engine - 4-stroke single, DOHC, liquid-cooled
• Displacement - 449cc
• Bore x Stroke - 96.0 x 62.1mm
• Compression Ratio - 12.5:1
• Fuel System - DFI® with 44mm Keihin throttle body
• Ignition - Digital CDI with handlebar-controlled Power Modes
• Transmission - 5-speed, return shift, with wet multi-disc manual clutch and hydraulic clutch actuation
• Final Drive - Chain
• Electronic Rider Aids - Power Modes, Kawasaki TRaction Control (KTRC), Launch Control Mode

Performance

• Front Suspension / Wheel Travel - 49mm inverted telescopic coil-spring fork with 21-way adjustable compression and 22-way adjustable rebound damping/12.0 in
• Rear Suspension / Wheel Travel - Uni-Trak® gas charged shock with piggyback reservoir with adjustable dual-range compression damping (19-way low speed and 4.25 turn stepless high speed), 23-way adjustable rebound damping and stepless adjustable preload/12.1 in
• Front Tire - 80/100-21
• Rear Tire- 120/80-18
• Front Brakes - Single semi-floating 270mm Braking/Sunstar petal disc with Brembo master cylinder and dual-piston caliper
• Rear Brakes - Single 240mm Braking/Sunstar petal disc with single-piston caliper