Motocross Bikes
2020Yamaha YZ450F
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The 2020 Yamaha YZ450F is a competitive motocross bike engineered for intermediate to advanced off-road racers seeking high performance. Its potent 449cc liquid-cooled four-stroke engine delivers strong power delivery with titanium valves and fuel injection, while the lightweight frame and agile handling make it ideal for track racing and serious trail riding.
- Capacity
- 449.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 99.3 kg
- Seat height
- 965 mm
- Power
- 56.0 HP (41.2 kW)
What’s new for the 2020 Yamaha YZ450F
vs the 2019| Spec | 2019 | 2020 |
|---|---|---|
| Torque | 41.7 Nm (4.3 kgf-m or 30.8 ft.lbs) @ 7510 RPM | 39.7 Nm (4.0 kgf-m or 29.3 ft.lbs) @ 7100 RPM |
| Seat height | 975 mm (38.4 inches) | 965 mm (38.0 inches) |
| Compression | 12.8:1 | 13.0:1 |
Other years
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How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross racing and hard off-road riding, excelling on tracks and rough terrain rather than street use.
- Built for
- Sharp, high-revving, and razor-responsive, it rewards committed, active riding with explosive acceleration and precise cornering manners.
- Not ideal for
- It is not suited for commuting, touring, passengers, or casual low-speed street riding due to its lack of lights, mirrors, and road-going comfort features.
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
- 56.0 HP (41.2 kW)
- Torque
- 39.7 Nm (4.0 kgf-m) @ 7100 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.5639 HP/kg (dry)
- Bore x stroke
- 97.0 x 60.9 mm
- Compression
- 13.0:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCI
- Valves per cylinder
- 4
- Lubrication system
- Wet sump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multiplate wet clutch
Dimensions & weight
- Wheelbase
- 1486 mm
- Overall length
- 2184 mm
- Overall width
- 826 mm
- Overall height
- 1275 mm
- Seat height
- 965 mm
- Dry weight
- 99.3 kg
- Wet weight
- 111.1 kg
- Fuel capacity
- 6.10 litres
- Ground clearance
- 330 mm
- Oil capacity
- 1.00 litres
Chassis & suspension
- Frame
- Bilateral beam frame
- Front suspension
- KYB Speed-Sensitive System, inverted fork: fully adjustable
- Rear suspension
- KYB® single shock; fully adjustable
- Front wheel travel
- 310 mm
- Rear wheel travel
- 318 mm
- Rake (fork angle)
- 27.3°
- Trail
- 119 mm
Brakes & wheels
- Front brakes
- Single disc. Hydraulic.
- Front brakes diameter
- 270 mm
- Rear brakes
- Single disc. Hydraulic.
- Rear brakes diameter
- 245 mm
- Front tyre
- 80/100-21
- Rear tyre
- 120/80-19
Other
- Color options
- Team Yamaha Blue, Gray
- Comments
- Torque is a rear-wheel dyno figure.
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 | 2010 | 2016 | 2020 | 2021 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 449 cc | 450 cc |
| Dry weight | 97 kg | 99 kg | 99 kg | 99 kg | 99 kg | 99 kg |
| Seat height | 995 mm | 998 mm | 975 mm | 965 mm | 965 mm | 965 mm |
| Fuel capacity | 6.8 L | 6.1 L | 7.6 L | 6.1 L | 6.1 L | 6.1 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 YZ450F?
The 2020 Yamaha YZ450F has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Yamaha YZ450F have?
The 2020 Yamaha YZ450F has a Power of 56.0 HP (41.2 kW).
How many gears does the Yamaha YZ450F have?
The 2020 Yamaha YZ450F has a Gearbox of 5-speed.
What is the torque of the Yamaha YZ450F?
The 2020 Yamaha YZ450F has a Torque of 39.7 Nm (4.0 kgf-m or 29.3 ft.lbs) @ 7100 RPM.
How much does the Yamaha YZ450F weigh?
The 2020 Yamaha YZ450F has a Dry weight of 99.3 kg (218.9 pounds).
Shop this bike
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The 2020 Yamaha YZ450F is an impressive off-road motorcycle that delivers incredible power, handling, and performance. With its advanced engine and lightweight design, this bike offers a thrilling riding experience for motocross enthusiasts. The YZ450F also features cutting-edge technology, including a wireless smartphone tuning app that allows riders to adjust their bike's settings for optimal performance. Overall, the 2020 Yamaha YZ450F is a top-notch choice for riders who demand the best in power and agility on the trails.
The 2020 Yamaha YZ450F is a standout in the world of motocross, offering riders an unparalleled combination of power and agility. The bike's advanced engine and lightweight design make it a force to be reckoned with on the trails, while its innovative technology, such as the wireless smartphone tuning app, sets it apart from the competition. Whether you're a seasoned rider or a newcomer to the sport, the 2020 Yamaha YZ450F is a top contender for those seeking a high-performance off-road motorcycle.
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