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MODEL SPECS |
Click on a technology to learn more.
| Engine Management Technology |
| Chassis Management Technology |
| Engine | 4-stroke single, DOHC, liquid-cooled |
| Displacement | 249cc |
| Bore x Stroke | 78.0 x 52.2mm |
| Compression Ratio | 14.2:1 |
| Fuel System | DFI® with 44mm Keihin throttle body and dual injectors |
| Ignition | Digital CDI |
| Transmission | 5-speed, return shift, with wet multi-disc manual clutch |
| Final Drive | Chain |
| Front Suspension / Wheel Travel | 48mm inverted telescopic coil spring fork with 23-way compression damping and 20-way rebound damping/12.4 in |
| Rear Suspension / Wheel Travel | Uni-Trak® gas charged shock with piggyback reservoir with dual range (2 1/16 turns stepless high speed /21-way low speed) and 38-way rebound damping and adjustable spring preload/12.2 in |
| Front Tire | 80/100-21 |
| Rear Tire | 100/90-19 |
| Front Brakes | Single semi-floating 270mm Braking® petal disc with dual-piston caliper |
| Rear Brakes | Single 250mm Braking® petal disc with single-piston caliper |
| Frame Type | Aluminum perimeter |
| Rake/Trail | 28.6°/5.1 in |
| Overall Length | 85.5 in |
| Overall Width | 32.3 in |
| Overall Height | 50.0 in |
| Ground Clearance | 13.1 in |
| Seat Height | 37.3 in |
| Curb Weight | 221.1 lb without fuel / 231.4 lb* |
| Fuel Capacity | 1.69 gal |
| Wheelbase | 58.3 in |
| 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 |
The Kawasaki KX™️250F was the first mass-production motocross bike to feature Dual Injectors. One injector is located downstream of the throttle valve, where injectors are located on standard FI systems, and a second is located upstream of the throttle valve, close to the airbox. The two injectors split their roles: operating at different rpm ranges, they ensure both smooth, instant response at low-rpm and high peak power at high-rpm. For cases that call for low-rpm operation like instantaneous acceleration off the start and precise control when cornering, primary operation falls to the downstream injector. Because it is positioned close to the combustion chamber, sprayed fuel can be supplied to the engine quickly, resulting in sharp response. Conversely, when high power is the priority, primary operation switches to the upstream injector, which focuses on high-rpm applications. Its location farther away from the combustion chamber means that the fuel has a longer travel time. This allows more time for the fuel particles and air to mix, as well as allowing the mixture to cool and condense. This means that when more power is needed, the cylinder can be filled with a greater quantity of high-quality mixture.
DUAL INJECTORS
Designed to assist riders by optimizing acceleration from a stop, KLCM electronically manages engine output to minimize wheel spin when moving off. With the clutch lever pulled in and the system activated, engine speed is limited to a determined speed while the rider holds the throttle open. Once the rider releases the clutch lever to engage the clutch, engine speed is allowed to increase, but power is regulated to minimize wheel spin and help keep the front wheel on the ground. The system disengages automatically once a predetermined speed has been reached, or when the rider shifts into third gear. Depending on the model, riders can choose from multiple modes, each offering a progressively greater level of intrusion.
KLCM (Kawasaki Launch Control Mode)
