Motocross Bikes
2006Kawasaki KX 450 F
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The 2006 Kawasaki KX 450 F is a high-performance four-stroke motocross bike designed for competitive and experienced riders seeking serious off-road performance. Powered by a 449cc liquid-cooled single-cylinder engine with advanced digital ignition and a Keihin carburetor, it delivers responsive power ideal for both track racing and challenging terrain. Known for its aggressive handling and reliability, the KX 450 F dominated the motocross scene during this era.
- Capacity
- 449.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 4-speed
- Dry weight
- 99.8 kg
- Seat height
- 965 mm
- Power
- 44.9 HP (33.0 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for closed-course motocross racing, excelling over jumps, whoops, and rough terrain rather than any road use.
- Built for
- Light, explosive, and razor-sharp in handling, it rewards aggressive, committed riding with rapid direction changes and strong acceleration out of corners.
- Not ideal for
- It is not suitable for commuting, touring, carrying a passenger, or anyone seeking a comfortable, road-legal, low-maintenance motorcycle.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 449.0 ccm
- Power
- 44.9 HP (33.0 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.4499 HP/kg (dry)
- Bore x stroke
- 96.0 x 62.1 mm
- Compression
- 12.0:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Multi-Map Digital CDI with
- Valves per cylinder
- 4
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc
Dimensions & weight
- Wheelbase
- 1486 mm
- Overall length
- 2184 mm
- Overall width
- 820 mm
- Overall height
- 1280 mm
- Seat height
- 965 mm
- Dry weight
- 99.8 kg
- Wet weight
- 112.1 kg
- Fuel capacity
- 7.20 litres
- Ground clearance
- 345 mm
Chassis & suspension
- Frame
- Aluminum perimeter
- 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 (fork angle)
- 27.1°
- Trail
- 117 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 250 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 240 mm
- Front tyre
- 90/90-21
- Rear tyre
- 120/80-19
Other
- Color options
- Kawasaki Lime Green / Black
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the Kawasaki KX 450 F?
The 2006 Kawasaki KX 450 F has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Kawasaki KX 450 F have?
The 2006 Kawasaki KX 450 F has a Power of 44.9 HP (33.0 kW).
How many gears does the Kawasaki KX 450 F have?
The 2006 Kawasaki KX 450 F has a Gearbox of 4-speed.
How much does the Kawasaki KX 450 F weigh?
The 2006 Kawasaki KX 450 F has a Dry weight of 99.8 kg (220.0 pounds).
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