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Key Features

Features Gallery
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    Large-capacity angled radiators

    Large-capacity radiators are angled directly into the incoming air flow for improved cooling under the most demanding race conditions. Inside the engine the water pump is equipped with a durable aluminium impeller, ensuring that the YZ250F keeps its cool under the toughest racing conditions.

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    Durable and light-feeling clutch

    To match the high performance reverse head engine, the YZ250F is equipped with a durable clutch with a low spring load, giving a light feel at the clutch lever and excellent operational feel at half clutch. Featuring thick friction plates, this heavy-duty clutch ensures consistently strong performance with excellent controllability and long-life durability.

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    Exclusive Power Tuner App

    Like the flagship YZ450F, the YZ250F features a Communication Control Unit (CCU) and onboard connectivity. Using the Power Tuner app you can wirelessly adjust fuel/air mix and ignition timing maps to tune engine performance for different track conditions – as well as record race log information and monitor a range of data such as maintenance, diagnosis, run time, and more.

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    Reverse-head engine

    The liquid-cooled, DOHC 4-valve, 250cc fuel-injected reverse head engine features a forward-positioned straight inlet tract with symmetrical intake and exhaust ports. A high-compression piston delivers outstanding engine character with a focus on top-end power delivery, and the lightweight rearward-slanted cylinder contributes towards the YZ250F’s mass-centralization.

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    Bilateral aluminium beam frame

    The compact and lightweight bilateral aluminium beam frame – combined with the bike’s unique mass centralized design – ensures that the YZ250F is one of the best handling bikes in its class. The frame’s rigidity is fine tuned to deliver immense strength with the best possible balance of bump absorption, stiffness and feeling of grip.

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    Lightweight electric starter with lithium-ion battery

    Mounted near the chassis center to maintain a good weight balance, the YZ250F’s light and compact electric starter ensures instant restarts during races – and saves you time and effort. Powered by a high-capacity and ultra-lightweight four-cell lithium-ion battery, the system adds minimal weight.

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    Compact body and seat

    The YZ250F features a slim and compact fuel tank specifically designed to give high levels of rider mobility. In addition to underlining the YZ250F’s feelings of lightness, the narrow body design gives a secure and comfortable knee grip for improved controllability, and the long seat gives you plenty of room to move around the bike.

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    Industry-leading suspension

    Large diameter KYB® coil spring-type forks give optimized rigidity for improved feel – while their speed-sensitive damping mechanism provides exceptional balance for race-winning handling. The lightweight KYB® rear shock and link-type rear suspension with specially developed settings give controlled damping characteristics with excellent traction.

Technical Specifications

Download Factsheet
  • Engine
    Engine type
    liquid-cooled, 4-stroke, 4-valves, DOHC
    Displacement
    250cc
    Bore x stroke
    77.0 mm x 53.6 mm
    Compression ratio
    13.8 : 1
    Maximum power
    Limited power version
    Maximum Torque
    Lubrication system
    Wet sump
    Clutch Type
    Wet, Multiple Disc
    Ignition system
    TCI
    Starter system
    Electric
    Transmission system
    Constant Mesh, 5-speed
    Final transmission
    Chain
    Fuel consumption
    -
    CO2 emission
    -
    Carburettor
    Electronic Fuel Injection
  • Chassis
    Frame
    Aluminium
    Front travel
    310 mm
    Caster Angle
    27.3º
    Trail
    119mm
    Front suspension system
    KYB® sprint-type fork
    Rear suspension system
    Monoshock
    Rear Travel
    318 mm
    Front brake
    Hydraulic single disc, Ø270 mm
    Rear brake
    Hydraulic single disc, Ø245 mm
    Front tyre
    80/100 - 21 X20F
    Rear tyre
    100/90 - 19 X20R
  • Dimensions
    Overall length
    2175 mm
    Overall width
    825 mm
    Overall height
    1285 mm
    Seat height
    970 mm
    Wheel base
    1475 mm
    Minimum ground clearance
    335 mm
    Wet weight (including full oil and fuel tank)
    106 kg
    Fuel tank capacity
    6.2L
    Oil tank capacity
    0.95L