Motocross Bikes
2006Yamaha YZ 450 F
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The 2006 Yamaha YZ450F is a competitive 449cc four-stroke motocross machine designed for intermediate to advanced riders seeking race-ready performance. Known for its potent V-twin engine and responsive power delivery, it dominated the MX2 class with excellent handling and reliability. The liquid-cooled DOHC engine delivers strong mid-range torque ideal for varied track conditions.
- Capacity
- 449.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 99.8 kg
- Seat height
- 998 mm
- Power
- 44.9 HP (33.0 kW)
What’s new for the 2006 Yamaha YZ 450 F
vs the 2005| Spec | 2005 | 2006 |
|---|---|---|
| Dry weight | 98.4 kg (216.9 pounds) | 99.8 kg (220.0 pounds) |
| Fuel capacity | 6.80 litres (1.80 US gallons) | 7.00 litres (1.85 US gallons) |
| Front suspension | 48mm Kayaba inverted telescopic fork w/adjustable compression and rebound damping | Upside-down telescopic fork |
| Rear suspension | Kayaba single shock w/adjustable preload, compression and rebound damping and separate hi/lo-speed compression adjuster | Swingarm (linked type monocross) |
| Compression | 12.5:1 | 12.3:1 |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross racing and serious off-road riding, not for commuting or general road use.
- Built for
- A light, high-revving, race-bred single-cylinder machine that rewards aggressive riding, quick direction changes, and confident throttle control.
- Not ideal for
- Not suitable for riders wanting a comfortable commuter, a passenger-friendly bike, or any form of long-distance road touring.
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)
- Compression
- 12.3:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- CDI
- Lubrication system
- Dry sump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multiple-disc
Dimensions & weight
- Wheelbase
- 1495 mm
- Overall length
- 2197 mm
- Overall width
- 815 mm
- Overall height
- 1300 mm
- Seat height
- 998 mm
- Dry weight
- 99.8 kg
- Wet weight
- 108.0 kg
- Fuel capacity
- 7.00 litres
- Ground clearance
- 373 mm
Chassis & suspension
- Front suspension
- Upside-down telescopic fork
- Rear suspension
- Swingarm (linked type monocross)
- Front wheel travel
- 300 mm
- Rear wheel travel
- 125 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 250 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 245 mm
- Front tyre
- 80/90-R21
- Rear tyre
- 110/90-19
Specs last verified against published sources: .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2004 | 2005 | 2006 | 2007 |
|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc |
| Dry weight | 97 kg | 98 kg | 100 kg | 100 kg |
| Seat height | 995 mm | 996 mm | 998 mm | 988 mm |
| Fuel capacity | 6.8 L | 6.8 L | 7 L | 6.8 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Yamaha YZ 450 F?
The 2006 Yamaha YZ 450 F has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Yamaha YZ 450 F have?
The 2006 Yamaha YZ 450 F has a Power of 44.9 HP (33.0 kW).
How many gears does the Yamaha YZ 450 F have?
The 2006 Yamaha YZ 450 F has a Gearbox of 5-speed.
How much does the Yamaha YZ 450 F weigh?
The 2006 Yamaha YZ 450 F has a Dry weight of 99.8 kg (220.0 pounds).
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