Motocross Bikes
2002Yamaha YZ 426 F
24 fields on record
The 2002 Yamaha YZ426F is a high-performance four-stroke motocross bike designed for experienced riders seeking competitive racing capability. Known for its potent 426cc liquid-cooled engine with five valves per cylinder and responsive handling, it dominated the MX2 class during its era. Its aggressive geometry and plush suspension travel make it ideal for serious off-road competitors.
- Capacity
- 426.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- 105.0 kg
- Seat height
- 998 mm
- Power
- 42.6 HP (31.3 kW)
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 street use or commuting.
- Built for
- A raw, high-revving, torquey competition bike that rewards aggressive riding and precise input with sharp handling and strong acceleration out of corners.
- Not ideal for
- Not suitable for beginners, short riders, daily commuting, passengers, or anyone seeking comfort and long-distance touring capability.
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
- 426.0 ccm
- Power
- 42.6 HP (31.3 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.4057 HP/kg (dry)
- Bore x stroke
- 95.0 x 60.1 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Valves per cylinder
- 5
Dimensions & weight
- Wheelbase
- 1490 mm
- Overall length
- 2171 mm
- Overall width
- 827 mm
- Overall height
- 1303 mm
- Seat height
- 998 mm
- Dry weight
- 105.0 kg
- Ground clearance
- 375 mm
Chassis & suspension
- Front wheel travel
- 300 mm
- Rear wheel travel
- 315 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 250 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 240 mm
- Front tyre
- 80/100-21
- Rear tyre
- 110/90-19
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 Yamaha YZ 426 F?
The 2002 Yamaha YZ 426 F has a Capacity of 426.0 ccm (26.00 cubic inches).
What engine power does the Yamaha YZ 426 F have?
The 2002 Yamaha YZ 426 F has a Power of 42.6 HP (31.3 kW).
How much does the Yamaha YZ 426 F weigh?
The 2002 Yamaha YZ 426 F has a Dry weight of 105.0 kg (231.5 pounds).
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