Motocross Bikes
2021Yamaha YZ250FX
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The 2021 Yamaha YZ250FX is a versatile 250cc four-stroke enduro bike designed for riders seeking trail-focused performance and everyday rideability. Powered by a liquid-cooled DOHC engine with titanium valves and fuel injection, it delivers smooth, controllable power ideal for off-road exploration and cross-training. Known for its lightweight agility and practical six-speed transmission, the YZ250FX excels in mixed terrain riding.
- Capacity
- 250.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 111.1 kg
- Seat height
- 955 mm
- Power
- 38.0 HP (27.9 kW)
What’s new for the 2021 Yamaha YZ250FX
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Torque | — | 24.8 Nm (2.5 kgf-m or 18.3 ft.lbs) @ 8400 RPM |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for cross-country and off-road racing, favoring flickable handling and strong midrange over outright top speed or road use.
- Built for
- A precise, high-revving 250cc four-stroke race bike with sharp throttle response and razor-sharp handling in tight, technical terrain.
- Not ideal for
- Not suited to riders wanting a comfortable street commuter, a passenger-friendly setup, or long-distance paved touring.
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
- 38.0 HP (27.9 kW)
- Torque
- 24.8 Nm (2.5 kgf-m) @ 8400 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.3420 HP/kg (wet)
- Bore x stroke
- 77.0 x 53.6 mm
- Compression
- 13.8:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Valves per cylinder
- 4
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multiplate wet clutch
Dimensions & weight
- Wheelbase
- 1481 mm
- Overall length
- 2174 mm
- Overall width
- 826 mm
- Overall height
- 1270 mm
- Seat height
- 955 mm
- Wet weight
- 111.1 kg
- Fuel capacity
- 8.30 litres
- Ground clearance
- 320 mm
- Oil capacity
- 1.50 litres
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Bilateral beam frame
- Front suspension
- KYB® spring-type fork with speed sensitive damping; fully adjustable
- Rear suspension
- KYB® single shock; full adjustable
- Front wheel travel
- 310 mm
- Rear wheel travel
- 318 mm
- Rake (fork angle)
- 27.2°
- Trail
- 117 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
- 80/90-21
- Rear tyre
- 110/100-18
Other
- Color options
- Team Yamaha Blue
- Comments
- 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 | 2015 | 2018 | 2021 | 2024 | 2027 |
|---|---|---|---|---|---|
| Capacity | 250 cc | 250 cc | 250 cc | 250 cc | 250 cc |
| Seat height | 965 mm | 965 mm | 955 mm | 965 mm | 955 mm |
| Fuel capacity | 7.6 L | 7.6 L | 8.3 L | 7.6 L | 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 YZ250FX?
The 2021 Yamaha YZ250FX has a Capacity of 250.0 ccm (15.26 cubic inches).
What engine power does the Yamaha YZ250FX have?
The 2021 Yamaha YZ250FX has a Power of 38.0 HP (27.9 kW).
How many gears does the Yamaha YZ250FX have?
The 2021 Yamaha YZ250FX has a Gearbox of 6-speed.
What is the torque of the Yamaha YZ250FX?
The 2021 Yamaha YZ250FX has a Torque of 24.8 Nm (2.5 kgf-m or 18.3 ft.lbs) @ 8400 RPM.
How much does the Yamaha YZ250FX weigh?
The 2021 Yamaha YZ250FX has a Wet weight of 111.1 kg (244.9 pounds).
Shop this bike
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The 2021 Yamaha YZ250FX is a high-performance off-road motorcycle that delivers exceptional power and handling. With its 250cc engine and advanced suspension system, this bike is perfect for navigating through rough terrain and tackling challenging trails. The YZ250FX offers precise control and responsive acceleration, making it a top choice for riders who demand the best in performance and reliability.
In addition to its impressive performance capabilities, the 2021 Yamaha YZ250FX boasts a sleek and aggressive design that is sure to turn heads on the trail. Its lightweight construction and ergonomic design make for a comfortable and responsive ride, while its durable components ensure long-lasting durability. Whether you're a seasoned off-road rider or a newcomer to the sport, the Yamaha YZ250FX is a formidable choice for conquering the toughest trails and pushing your riding to the next level.
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