The Kawasaki KFX 450R motorcycle specifications include a 449 cc (27.40 cu in) engine, a 5-speed gearbox, and a listed weight of 394.7 kg (870.2 lb).
Key specifications
The 2009 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Kawasaki KFX 450R 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.
Very close to the Kawasaki database average. Around the 35th percentile across Kawasaki models.
About 36% smaller than the Kawasaki database average. Around the 21st 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.
785 mm — taller than about 35% of Kawasaki models.
9.8 L — larger than about 21% 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.
1,806
2,122
15% below average.
1,171
833
41% above average.
1,064
1,175
9% below average.
1,255
1,441
13% below average.
785
801
Close to average.
109
187
42% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 21/7-10 (AT) |
|---|---|
| Rear tire size | 20/10-9 (AT) |
| Bore/stroke ratio | 1.55:1 (Oversquare) |
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 | 8.9:1 |
| Valves per cylinder | 4 |
| Cooling system | Liquid |
| Fuel system | Injection |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | Solid state with electronic ignition backup |
| Starter | Electric |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Chain (final drive) |
Chassis and suspension
| Frame | Aluminum double cradle, racing type |
|---|---|
| Front suspension | Dual A-arms, coil-over shocks / 8.5 in |
| Rear suspension | Swingarm with piggy-back reservoir shock, dual-rate spring / 10.0 in |
Brakes, wheels and tires
| Front brakes | Double disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 21/7-10 (AT) |
| Rear tire | 20/10-9 (AT) |
Dimensions and weight
| Dry weight | 394.7 kg (870.2 lb) |
|---|---|
| Seat height | 785 mm (30.9 inches) |
| Overall length | 1,806 mm (71.1 inches) |
| Overall width | 1,171 mm (46.1 inches) |
| Overall height | 1,064 mm (41.9 inches) |
| Wheelbase | 1,255 mm (49.4 inches) |
| Ground clearance | 109 mm (4.3 inches) |
Fuel and emissions
| Fuel capacity | 9.84 L (2.60 US gal) |
|---|
Other specifications
| Color options | Lime Green, Sunbeam Red |
|---|---|
| Price as new | US$ 7549. MSRP depends on country, taxes, accessories, etc. |
| Comments | Two-wheel drive. Dual removable headlights. |
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.