Motocross Bikes
2021Yamaha YZ250F Monster Energy
41 fields on record
The 2021 Yamaha YZ250F Monster Energy is a competitive 250cc four-stroke motocross bike engineered for intermediate to advanced riders seeking lightweight agility and reliable power. Its liquid-cooled DOHC engine with titanium valves and fuel injection delivers consistent performance across varying terrain. Known for responsive handling and a user-friendly powerband, it excels in both amateur racing and recreational trail riding.
- Capacity
- 250.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 106.1 kg
- Seat height
- 970 mm
- Power
- 43.0 HP (31.6 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Purpose-built for motocross racing and closed-course off-road competition, not general road use.
- Built for
- A razor-sharp, lightweight competition weapon that rewards aggressive input with explosive agility and top-tier suspension performance.
- Not ideal for
- Not suitable for commuting, touring, passengers, or riders seeking comfort and low-speed practicality.
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
- 250.0 ccm
- Power
- 43.0 HP (31.6 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.4053 HP/kg (wet)
- Bore x stroke
- 77.0 x 53.6 mm
- Compression
- 13.8:1
- 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
- 1476 mm
- Overall length
- 2174 mm
- Overall width
- 826 mm
- Overall height
- 1285 mm
- Seat height
- 970 mm
- Wet weight
- 106.1 kg
- Fuel capacity
- 6.10 litres
- Ground clearance
- 335 mm
- Oil capacity
- 0.90 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Bilateral beam aluminum frame
- Front suspension
- KYB speed-Sensitive System, inverted fork: fully adjustable
- Rear suspension
- KYB fully adjustable single shock
- Front wheel travel
- 310 mm
- Rear wheel travel
- 318 mm
- Rake (fork angle)
- 26.0°
- Trail
- 119 mm
Brakes & wheels
- Front brakes
- Single disc. Hydraulic.
- Front brakes diameter
- 270 mm
- Rear brakes
- Single disc. Hydraulic.
- Front tyre
- 80/100-21
- Rear tyre
- 100/90-19
Other
- Color options
- Team Yamaha Blue/green/black
- Comments
- Special Monster Energy Yamaha Racing Edition. Power Tuner app.
- Modifications compared to previous model
- New cylinder head with an improved intake port shape, new exhaust camshaft profile, a new silencer, and an updated ECU.
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 | 2026 | 2027 |
|---|---|---|---|---|---|
| Capacity | 250 cc | 250 cc | 250 cc | 250 cc | 250 cc |
| Dry weight | — | — | — | — | 93 kg |
| Seat height | 970 mm | 970 mm | 970 mm | 970 mm | 970 mm |
| Fuel capacity | 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 YZ250F Monster Energy?
The 2021 Yamaha YZ250F Monster Energy has a Capacity of 250.0 ccm (15.26 cubic inches).
What engine power does the Yamaha YZ250F Monster Energy have?
The 2021 Yamaha YZ250F Monster Energy has a Power of 43.0 HP (31.6 kW).
How many gears does the Yamaha YZ250F Monster Energy have?
The 2021 Yamaha YZ250F Monster Energy has a Gearbox of 5-speed.
How much does the Yamaha YZ250F Monster Energy weigh?
The 2021 Yamaha YZ250F Monster Energy has a Wet weight of 106.1 kg (233.9 pounds).
Shop this bike
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The 2021 Yamaha YZ250F Monster Energy motorcycle is a powerful and agile machine designed for motocross enthusiasts. With its 250cc liquid-cooled four-stroke engine, this bike delivers impressive performance and acceleration on the track. The Monster Energy graphics and bold design give it a standout appearance that is sure to turn heads. The lightweight chassis and advanced suspension system make for a smooth and responsive ride, allowing riders to navigate tight corners and jumps with ease. Overall, the Yamaha YZ250F Monster Energy is a top-notch motocross bike that offers both style and substance.
If you're in the market for a high-performance motocross bike, the 2021 Yamaha YZ250F Monster Energy is a top contender. Its powerful 250cc engine and agile handling make it a standout choice for riders who want to dominate the track. With its eye-catching Monster Energy graphics and advanced suspension system, this bike offers both style and functionality. Whether you're a seasoned pro or a novice rider looking to step up your game, the Yamaha YZ250F Monster Energy is a worthy investment for any motocross enthusiast.
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