Motocross Bikes
2025Yamaha YZ450F Monster Energy
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The 2025 Yamaha YZ450F Monster Energy is a high-performance motocross bike engineered for competitive and aggressive riders seeking championship-level performance. Powered by a potent 450cc liquid-cooled four-stroke engine with titanium valves and DOHC technology, it delivers explosive power and precise throttle response on demanding terrain. Best known for its winning heritage and race-proven reliability, this machine excels for serious motocross competitors and experienced off-road enthusiasts.
- Capacity
- 450.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 110.2 kg
- Seat height
- 965 mm
- Power
- 56.0 HP (41.2 kW)
What’s new for the 2025 Yamaha YZ450F Monster Energy
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Torque | — | 44.7 Nm (4.6 kgf-m or 33.0 ft.lbs) @ 7700 RPM |
| Front suspension | KYB Speed-Sensitive System, inverted fork: fully adjustable | KYB® spring-type fork with speed sensitive damping; fully adjustable |
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 razor-sharp, high-revving 450cc single with titanium valves and fully adjustable KYB suspension, designed to be thrown around berms and jumps with total precision.
- Not ideal for
- Not for beginners, commuters, passengers, or anyone wanting comfort, storage, or highway 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
- 450.0 ccm
- Power
- 56.0 HP (41.2 kW)
- Torque
- 44.7 Nm (4.6 kgf-m) @ 7700 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.5082 HP/kg (wet)
- Bore x stroke
- 97.0 x 60.8 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
Dimensions & weight
- Wheelbase
- 1476 mm
- Overall length
- 2174 mm
- Overall width
- 826 mm
- Overall height
- 1275 mm
- Seat height
- 965 mm
- Wet weight
- 110.2 kg
- Fuel capacity
- 6.10 litres
- Ground clearance
- 351 mm
- Oil capacity
- 1.00 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Bilateral beam, aluminum
- Front suspension
- KYB® spring-type fork with speed sensitive damping; fully adjustable
- Rear suspension
- KYB® single shock; fully adjustable
- Front wheel travel
- 310 mm
- Rear wheel travel
- 295 mm
- Rake (fork angle)
- 27.5°
- Trail
- 122 mm
Brakes & wheels
- Front brakes
- Single disc. Hydraulic.
- Front brakes diameter
- 270 mm
- Rear brakes
- Single disc. Hydraulic.
- Rear brakes diameter
- 240 mm
- Front tyre
- 80/100-21
- Rear tyre
- 120/80-19
Other
- Color options
- Yamaha Blue/green/white
- Comments
- Traction control. Three power modes. Power tuner app. 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 | 2021 | 2023 | 2024 | 2025 | 2026 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 450 cc | 450 cc | 450 cc |
| Dry weight | — | — | — | — | — | 99 kg |
| Seat height | 965 mm | 965 mm | 965 mm | 965 mm | 965 mm | 965 mm |
| Fuel capacity | 6.1 L | 6.1 L | 6.1 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 Monster Energy?
The 2025 Yamaha YZ450F Monster Energy has a Capacity of 450.0 ccm (27.46 cubic inches).
What engine power does the Yamaha YZ450F Monster Energy have?
The 2025 Yamaha YZ450F Monster Energy has a Power of 56.0 HP (41.2 kW).
How many gears does the Yamaha YZ450F Monster Energy have?
The 2025 Yamaha YZ450F Monster Energy has a Gearbox of 5-speed.
What is the torque of the Yamaha YZ450F Monster Energy?
The 2025 Yamaha YZ450F Monster Energy has a Torque of 44.7 Nm (4.6 kgf-m or 33.0 ft.lbs) @ 7700 RPM.
How much does the Yamaha YZ450F Monster Energy weigh?
The 2025 Yamaha YZ450F Monster Energy has a Wet weight of 110.2 kg (242.9 pounds).
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