Motocross Bikes

2018Yamaha YZ250F

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The 2018 Yamaha YZ250F is a lightweight four-stroke motocross bike designed for intermediate to advanced amateur riders seeking reliable performance and excellent handling. Known for its agile chassis and compact dimensions, this bike excels in tight technical terrain and delivers consistent power delivery. The 231-pound machine combines aggressive styling with user-friendly characteristics that make it competitive in regional racing and recreational riding.

Capacity: 250.0 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Dry weight: 92.5 kg
Seat height: 965 mm
Power: 43.0 HP (31.6 kW)

⇄ Compare with another bike All model years

Other years 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail96%

Cornering88%

City riding10%

Daily riding10%

Touring12%

Two-up5%

Track95%

Best for: Designed purely for motocross and off-road track competition, prioritizing light weight, sharp handling, and high-rev four-stroke power delivery over any road-going comfort or practicality.
Built for: A raw, focused competition tool that rewards active, aggressive riding input with explosive acceleration out of corners and razor-sharp direction changes.
Not ideal for: Not for commuters, passengers, long-distance touring riders, or anyone seeking a comfortable, low-maintenance street-legal machine.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 965mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2018 Yamaha YZ250F, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

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Full specifications

Engine

Capacity: 250.0 ccm
Power: 43.0 HP (31.6 kW)
Engine type: Single, four-stroke
Power/weight ratio: 0.4649 HP/kg (dry)
Bore x stroke: 77.0 x 53.6 mm
Compression: 13.5:1
Cooling system: Liquid
Fuel system: Injection
Starting: Kick
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: 2164 mm
Overall width: 826 mm
Overall height: 1280 mm
Seat height: 965 mm
Dry weight: 92.5 kg
Wet weight: 104.8 kg
Fuel capacity: 7.50 litres
Ground clearance: 325 mm
Oil capacity: 0.90 litres

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: 315 mm
Rake (fork angle): 28.0°
Trail: 119 mm

Brakes & wheels

Front brakes: Single disc. Hydraulic.
Front brakes diameter: 250 mm
Rear brakes: Single disc. Hydraulic.
Rear brakes diameter: 245 mm
Front tyre: 80/100-21
Rear tyre: 100/90-19

Other

Color options: Team Yamaha Blue, White

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	2002	2008	2015	2018	2021	2027
Capacity	249 cc	250 cc	250 cc	250 cc	250 cc	250 cc
Dry weight	97 kg	93 kg	93 kg	93 kg	93 kg	93 kg
Seat height	998 mm	986 mm	965 mm	965 mm	970 mm	970 mm
Fuel capacity	6.8 L	6.8 L	6.1 L	7.5 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

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MotorcycleDB Review

The 2018 Yamaha YZ250F is a top-of-the-line motocross bike that delivers impressive performance and handling. With its 250cc liquid-cooled four-stroke engine, this motorcycle offers plenty of power for tackling any terrain. The YZ250F also features a lightweight aluminum frame and adjustable suspension, allowing riders to customize their ride for optimal comfort and control. Whether you're a seasoned pro or a weekend warrior, the Yamaha YZ250F has the power and agility to take your off-road adventures to the next level.

Overall, the 2018 Yamaha YZ250F is a standout in the motocross world, with its powerful engine, responsive handling, and high-quality construction. Whether you're tearing up the track or exploring off-road trails, this bike offers the performance and durability that riders demand. Plus, with its sleek design and aggressive styling, the YZ250F is sure to turn heads wherever you go. If you're in the market for a top-notch motocross bike, the 2018 Yamaha YZ250F is definitely worth a closer look.