Motocross Bikes
2025Yamaha YZ250 Monster Energy
40 fields on record
The 2025 Yamaha YZ250 Monster Energy is a lightweight two-stroke motocross bike engineered for competitive and intermediate riders seeking aggressive performance on the track. Its potent 249cc reed-valve engine delivers sharp power delivery and quick throttle response, making it ideal for racing and technical terrain. Known for agility and precise handling, this machine excels in sprint racing and high-speed cornering.
- Capacity
- 249.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 5-speed
- Wet weight
- 103.0 kg
- Seat height
- 975 mm
- Power
- 46.0 HP (34.3 kW)
What’s new for the 2025 Yamaha YZ250 Monster Energy
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Fuel capacity | 7.00 litres (1.85 US gallons) | 6.80 litres (1.80 US gallons) |
| Front suspension | Speed-Sensitive System inverted fork; fully adjustable | KYB® Speed-Sensitive System inverted fork; fully adjustable |
| Rear suspension | Single shock; fully adjustable | KYB® single shock; fully adjustable |
| Front brakes | Single disc | Single disc. Hydraulic |
| Rear brakes | Single disc | Single disc. Hydraulic |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross track riding and racing, not for street use, commuting, or general adventure riding.
- Built for
- A raw, high-revving two-stroke that rewards aggressive clutch and throttle control with explosive acceleration and razor-sharp cornering agility.
- Not ideal for
- Not suitable for beginners, passengers, commuting, touring, or anyone seeking a comfortable, low-maintenance, road-legal motorcycle.
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
- 249.0 ccm
- Power
- 46.0 HP (34.3 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.4466 HP/kg (wet)
- Bore x stroke
- 66.4 x 72.0 mm
- Compression
- 10.6:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- CDI
- Lubrication system
- Premix
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multi plate wet
Dimensions & weight
- Wheelbase
- 1486 mm
- Overall length
- 2184 mm
- Overall width
- 826 mm
- Overall height
- 1290 mm
- Seat height
- 975 mm
- Wet weight
- 103.0 kg
- Fuel capacity
- 6.80 litres
- Ground clearance
- 361 mm
- Oil capacity
- 0.80 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Semi-double cradle, aluminium
- Front suspension
- KYB® Speed-Sensitive System inverted fork; fully adjustable
- Rear suspension
- KYB® single shock; fully adjustable
- Front wheel travel
- 300 mm
- Rear wheel travel
- 315 mm
- Rake (fork angle)
- 27.7°
- 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
- 110/90-19
Other
- Color options
- Team Yamaha Blue
- Comments
- Power is a Motocross Action dyno figure; Yamaha does not publish one for the YZ250.
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 | 2022 | 2023 | 2025 | 2026 | 2027 |
|---|---|---|---|---|---|
| Capacity | 249 cc | 249 cc | 249 cc | 249 cc | 249 cc |
| Dry weight | — | — | — | — | 96 kg |
| Seat height | 970 mm | 975 mm | 975 mm | 975 mm | 975 mm |
| Fuel capacity | 8 L | 7 L | 6.8 L | 6.8 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 YZ250 Monster Energy?
The 2025 Yamaha YZ250 Monster Energy has a Capacity of 249.0 ccm (15.19 cubic inches).
What engine power does the Yamaha YZ250 Monster Energy have?
The 2025 Yamaha YZ250 Monster Energy has a Power of 46.0 HP (34.3 kW).
How many gears does the Yamaha YZ250 Monster Energy have?
The 2025 Yamaha YZ250 Monster Energy has a Gearbox of 5-speed.
How much does the Yamaha YZ250 Monster Energy weigh?
The 2025 Yamaha YZ250 Monster Energy has a Wet weight of 103.0 kg (227.1 pounds).
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