Motocross Bikes
2018Yamaha YZ250FX
38 fields on record
The 2018 Yamaha YZ250FX is a versatile four-stroke designed for recreational and amateur off-road riders seeking a capable trail and enduro machine. Known for its reliable electric-start engine and compliant suspension with 310mm front and 318mm rear wheel travel, it balances performance with user-friendly handling. The YZ250FX excels in mixed terrain riding where versatility and ease of use matter more than outright racing capability.
- Capacity
- 250.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 112.9 kg
- Seat height
- 965 mm
- Power
- 38.0 HP (27.9 kW)
What’s new for the 2018 Yamaha YZ250FX
vs the 2017| Spec | 2017 | 2018 |
|---|---|---|
| Front suspension | KYB Speed-Sensitive System | KYB® spring-type fork with speed sensitive damping; fully adjustable |
| Rear suspension | KYB Fully adjustable single shock | KYB® single shock; full adjustable |
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)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.3366 HP/kg
- Bore x stroke
- 77.0 x 53.6 mm
- Compression
- 13.5:1
- 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
- 1466 mm
- Overall length
- 2164 mm
- Overall width
- 826 mm
- Overall height
- 1280 mm
- Seat height
- 965 mm
- Wet weight
- 112.9 kg
- Fuel capacity
- 7.60 litres
- Ground clearance
- 325 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)
- 26.3°
- Trail
- 114 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
- 90/90-21
- Rear tyre
- 110/100-18
Other
- Color options
- Team Yamaha Blue
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 | 2023 | 2026 |
|---|---|---|---|---|---|
| Capacity | 250 cc | 250 cc | 250 cc | 250 cc | 250 cc |
| Seat height | 965 mm | 965 mm | 955 mm | 955 mm | 955 mm |
| Fuel capacity | 7.6 L | 7.6 L | 8.3 L | 8.3 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 2018 Yamaha YZ250FX has a Capacity of 250.0 ccm (15.26 cubic inches).
What engine power does the Yamaha YZ250FX have?
The 2018 Yamaha YZ250FX has a Power of 38.0 HP (27.9 kW).
How many gears does the Yamaha YZ250FX have?
The 2018 Yamaha YZ250FX has a Gearbox of 6-speed.
How much does the Yamaha YZ250FX weigh?
The 2018 Yamaha YZ250FX has a Wet weight of 112.9 kg (248.9 pounds).
Shop this bike
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The 2018 Yamaha YZ250FX is an impressive off-road motorcycle built for performance and durability. With its lightweight frame and powerful engine, this bike is perfect for tackling rugged trails and rough terrain. The YZ250FX also features advanced suspension and handling, making it easy to control and maneuver through challenging environments. Whether you're a seasoned rider or a beginner looking to improve your skills, the YZ250FX is a reliable and capable choice for off-road adventures.
One of the standout features of the 2018 Yamaha YZ250FX is its exceptional engine performance. The 250cc liquid-cooled, four-stroke engine delivers strong and consistent power, allowing riders to conquer steep inclines and navigate through tight corners with ease. Additionally, the YZ250FX is designed with a comfortable and ergonomic riding position, making it a great choice for long rides and extended off-road excursions. Overall, the 2018 Yamaha YZ250FX is a high-quality off-road motorcycle that offers impressive performance and reliability for riders of all skill levels.
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