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Professional rider(s) on a closed course.
KX™450
                    FOR THE CHAMPION INSIDE ALL OF US
                
            Professional rider(s) on a closed course.
| MODEL SPECS | 
BREMBO BRAKE
                                            COMPONENTS
                                        ODI LOCK-ON
                                            GRIPS
                                        Click on a technology to learn more.
| Engine Management Technology | 
| Chassis Management Technology | 
| Engine | 4-stroke, single-cylinder, 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 | 
| Front Suspension / Wheel Travel | 49mm Showa 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 | 120/80-19 | 
| 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 | 
| Frame Type | Aluminum perimeter | 
| Rake/Trail | 26.6°/4.5 in | 
| Overall Length | 85.8 in | 
| Overall Width | 32.3 in | 
| Overall Height | 50.0 in | 
| Ground Clearance | 13.6 in | 
| Seat Height | 37.8 in | 
| Curb Weight | 238.3 lb* without fuel / 248.2 lb* | 
| Fuel Capacity | 1.64 gal | 
| Wheelbase | 58.3 in | 
| Special Features | Smartphone Connectivity via RIDEOLOGY THE APP KX, ERGO-FIT® | 
| Color Choices | Lime Green | 
| Warranty | Not Available | 
*Curb weight includes all necessary materials and fluids to operate correctly, full tank of fuel (more than 90 percent capacity) and tool kit (if supplied).
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. ©2025 Kawasaki Motors Corp., U.S.A.
Specifications subject to change.
| GALLERY | 
 
                                        2024 KX™450: CHAMPIONSHIP MOMENT
                                     
                                        2024 KX™️450 PRODUCT WALK AROUND VIDEO
                                     
                                        Science of Supermotocross Engineered by Kawasaki – Episode 143 (Sit or Stand)
                                     
                                        Science of Supermotocross Engineered by Kawasaki - Episode 144 (Launch Light)
                                     
                                        Science of Supermotocross Engineered by Kawasaki - Episode 145 (Wiring Harness)
                                     
                                        Science of Supermotocross Engineered by Kawasaki - Episode 146 (Mud Race Prep)
                                    Professional rider(s) on a closed course.
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