Kawasaki KX 250 F - History
With the emergence of 4-stroke motocross machines in the late 1990s, spearheaded by Yamaha and soon followed by Honda, all manufacturers shifted their focus on producing powerful and competitive four-stroke motocross motorcycles.
In 2004, Kawasaki (in collaboration with Suzuki) launched their first 4-stroke motocross bike, the KX250F. The motorbike quickly made its mark in various championships, particularly in AMA Supercross and Motocross, where the Pro Circuit Team regularly achieved podium finishes. The introduction of an aluminum frame in 2006 marked a substantial weight reduction from its predecessor, and it provided enhanced suspension due to the newly introduced Showa shocks. A new frame was introduced in 2009, and it was not until 2011 that the engine was fitted with electronic fuel injection. In 2013, the KXF was given a facelift and a completely new chassis with Kayaba suspension and a significantly lighter SFF fork. A thorough chassis overhaul happened in 2017, making it slimmer and lighter. In 2021, Kawasaki adopted the excellent chassis of their 450 series and outfitted the KXF with Kayaba SSS suspension, an electric starter and a hydraulic clutch.
The Kawasaki 250 KXF is a powerful motocross motorcycle that is suitable for both competition and leisure riding. It is not road-legal, but is designed for use on race tracks / motocross trails and off-road.
Kawasaki KX250F - technical data
KXF250 engine:
- Type: Single-cylinder 4-stroke engine
- Cylinder head: 4 valves with two overhead camshafts
- Liquid-cooled
- Displacement: 249 cc
- Bore x stroke: 77 x 53.6
- Compression ratio: 13.2:1
- Mixture: Keihin carburetor FCR MX 37
- Electronic ignition
- Kickstart
- 5-speed gearbox
- Multi-plate clutch (cable operated)
Kawasaki KX 250 F Chassis
- Perimeter aluminium frame
- Wheelbase: 1470 mm
- Caster angle: 27.7°
- Kayaba 47mm upside-down fork, adjustable in compression and rebound
- Fork travel: 300mm
- Showa rear shock absorber, adjustable in preload, compression and rebound
- Rear suspension travel (Uni-Trak): 310mm
- Seat height: 955 mm
- Weight (full tank): 104.3 kg
- Fuel tank: 8 l
- Front tire: 80/100-21
- Rear tire: 100/90-19
- Front brake: 250 mm brake disk
- Rear brake: 240 mm brake disk
Kawasaki KXF 250 in our store:
In our online store you will find a large selection of spare parts for KX-F 250.
For regular maintenance and minor repairs, we have engine oil, gear oil, spark plugs, levers and brake pads.
For larger projects, we carry pistons, crankshafts, gearbox bearings and clutches for the engine, as well as fork seals, linkage bearings and other suspension parts.
For racing drivers and tuners, we can also supply exhausts, reed valves, oversize brake kits or holeshot kits and other performance-enhancing parts.
