The innovative reverse-head engine pushes out high levels of controllable performance to keep you out front from the start gate to the chequered flag – and the exclusive Power Tuner app lets you carry out wireless trackside tuning so that you can choose the exact power profile for optimum race results at every track.
The compact chassis and mass centralised layout gives outstanding agility – and the industry-leading coil spring front forks and link-type rear end deliver winning performance with class-leading feel. Tune. Race. Win.
For instant mapping changes ‘on the move’ there’s a two-mode handlebar-mounted mapping switch that allows you to instantly adjust engine character with the push of a button – making it easy to fine tune the YZ250F using one of your pre-loaded maps to suit changing track or weather conditions while riding.
The compact and lightweight bilateral aluminium beam frame – combined with the bike’s unique mass centralised 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.
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-centralisation.
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.
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.
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.
Mounted near the chassis centre 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.
Large diameter KYB® coil spring-type forks give optimised 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.
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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