The Kawasaki KX 450 F motorcycle specifications include a 449 cc (27.40 cu in) engine, a 4-speed gearbox, and a listed weight of 99.8 kg (220 lb).
Key specifications
How the Kawasaki KX 450 F compares
This compares the motorcycle with all Kawasaki models in this specifications database. The blue marker is this model and the grey line is the Kawasaki database average.
About 35% lower than the Kawasaki database average. Around the 34th percentile across Kawasaki models.
About 21% taller than the Kawasaki database average. Around the 99th percentile across Kawasaki models.
About 53% smaller than the Kawasaki database average. Around the 13th percentile across Kawasaki models.
Kawasaki database percentile rankings
Percentiles show where this motorcycle sits across the Kawasaki specifications database. They are descriptive database rankings, not performance ratings.
449 cc — larger displacement than about 34% of Kawasaki models.
965 mm — taller than about 99% of Kawasaki models.
7.2 L — larger than about 13% of Kawasaki fuel tanks in this database.
Dimensions compared with Kawasaki average
Each measurement is compared with the average value across Kawasaki models where that dimension is available.
1,486
1,441
3% above average.
965
801
21% above average.
345
187
85% above average.
Mechanical overview
Additional useful specifications
| Front tire size | 90/90-21 |
|---|---|
| Rear tire size | 120/80-19 |
| Front tire width | 90 mm |
| Front tire aspect ratio | 90% |
| Front rim diameter | 21 in |
| Rear tire width | 120 mm |
| Rear tire aspect ratio | 80% |
| Rear rim diameter | 19 in |
| Bore/stroke ratio | 1.55:1 (Oversquare) |
Model information
| Year released | 2006 |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 449 cc (27.40 cu in) |
| Bore × stroke | 96.0 x 62.1 mm (3.8 x 2.4 inches) |
| Compression ratio | 12.0:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Carburettor. Keihin FCR40 |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | Multi-Map Digital CDI with |
Transmission and drivetrain
| Gearbox | 4-speed |
|---|---|
| Final drive | Chain (final drive) |
Chassis and suspension
| Front suspension | 38mm leading axle, air-adjustable preload / 9.1 in. |
|---|---|
| Rear suspension | Uni-Trak® with Adjustable Preload, 22-Way (Low Speed)/ Stepless (High Speed) Compression Adjustment, 22-Way Rebound Damping Adjustment, Temperature Compensating Rebound Adjustment |
| Rake | 27.1° |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 90/90-21 |
| Rear tire | 120/80-19 |
Dimensions and weight
| Dry weight | 99.8 kg (220 lb) |
|---|---|
| Seat height | 965 mm (38.0 inches) |
| Wheelbase | 1,486 mm (58.5 inches) |
| Ground clearance | 345 mm (13.6 inches) |
Fuel and emissions
| Fuel capacity | 7.19 L (1.90 US gal) |
|---|
Other specifications
| Color options | Kawasaki Lime Green / Black |
|---|---|
| Price as new | US$ 6799. MSRP depends on country, taxes, accessories, etc. |
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Kawasaki models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Kawasaki information before relying on them. Visit the official Kawasaki website.