THE BIKE THAT BUILDS CHAMPIONS.
THE BIKE THAT BUILDS CHAMPIONS.
With more Supercross and Motocross championships than any other manufacturer, the KX™ name is synonymous with winning. The KX™450 motorcycle represents the flagship of the KX™ lineup, built with the sole purpose of dominating the track. Over the past four decades, we've learned what it takes to win and stay on top. Our dedication to building the ultimate machine is undeniable, and the KX™450 represents this to the fullest.
POWER & PERFORMANCE
BUILT TO WIN
The 2021 KX™450 engine offers increased performance and delivers broad, useable torque and strong, responsive power across the rev range. From the starting gate to the finish line, this race-ready machine is built to stay ahead of the pack.
POWER THROUGH THE FINISH
The powerful 449cc engine features new friction reduction coating on the piston for increased engine performance.
EVERY SECOND COUNTS
A factory-style launch control system helps put the bike's power to the ground for maximum acceleration at the start of the race, making the holeshot yours for the taking.
PULL AHEAD
A flat torque curve makes it easier to get on the gas sooner, delivering smooth and powerful acceleration to pass the competition and keep you ahead of the pack.
FINELY TUNED POWER
Use the DFI® couplers to choose engine settings to suit your riding style or track conditions. This plug-and-play style system allows quick and easy selection from three pre-programmed fuel injection and ignition mapping settings. Fine tune your ECU setting with factory precision. The KX™ FI Calibration Kit* features a handheld controller that enables adjustment of fuel mapping and allows storage of presets without a PC.
RACE-READY SUSPENSION
LEAVE THEM IN THE DUST
Take the lead with proven race-winning performance. The highly adjustable suspension package delivers smooth action, firm damping and contributes to optimal traction.
RACE READY
The 49mm Showa Coil Spring Front Fork combined with A-KIT Technology deliver excellent handling. Large-diameter inner tubes allow the use of large damping pistons for race-winning performance while a large-diameter front axle provides exceptional front-wheel traction.
CHAMPIONSHIP PROVEN
The Uni-Trak® rear suspension system features adjustable dual-range (high- and low-speed) compression damping, adjustable rebound damping, and adjustable preload. The result is optimal damping and rear-wheel traction.
NEXT-LEVEL TECHNOLOGY
RIDE WITH CONFIDENCE
From quick, reliable starting to advanced braking power, the KX™450 motorcycle offers superior features designed to inspire confidence. What's more, this race-ready machine is backed by decades of championship-proven experience.
CHASSIS & ERGONOMICS
MADE TO SHAVE LAP TIMES
Experience the race-winning advantage of a strong and lightweight chassis, agile handling, and exclusive ERGO-FIT® technology.
ADDITIONAL VEHICLE FEATURES:
• Electric Start
• Strong, Lightweight Chassis
• ERGO-FIT® Adjustability
• DFI® Couplers
• Industry-leading slim aluminum perimeter frame
• Showa A-KIT Technology Suspension
• Uni-Trak® linkage system
COLOR OPTION:
• Lime Green
† Specifications and pricing are subject to change.
Dealer sets the actual destination charge, your price may vary.
KAWASAKI CARES: Read Owner's Manual and all on-product warnings. Always wear a helmet, eye protection and proper apparel. Never ride under the influence of drugs or alcohol. Adhere to the maintenance schedule in your Owner's Manual. ©2020 Kawasaki Motors Corp., U.S.A.
