THE LIGHTER, SHARPER, MORE ADVANCED: YZ250F As soon as you ride the latest generation YZ250F you’ll feel the di erence immediately. Featuring a lower centre of gravity, the lightweight bilateral aluminium frame and revised KYB suspension with new suspension linkage gives you increased levels of agility for faster cornering and rapid directional changes. And with a much atter seat, with one-piece single cover, and narrower radiator shrouds the enhanced ergonomics provide increased controllability. Already a proven Motocross Grand Prix winner, the latest YZ250F bene ts from a new suspension linkage and corresponding suspension settings at both the front and the rear to improve traction on corner exit, taking the YZ250F’s renowned agile handling to the next level.
THE LIGHTER, SHARPER, MORE ADVANCED: YZ250F The YZ250F is a favourite choice for riders who want the ultimate combination of controllable power, agile handling and Yamaha durability. With a Grand Prix-derived chassis, ultra-compact bodywork and an uprated engine, the latest generation YZ250F is like the bike you already love, only lighter, sharper and more advanced! The chassis comes straight from the outstanding YZ450F that won numerous MXGP and Supercross races in its rst season. Featuring revised geometry, a new rear suspension linkage and revised factory settings at both the front and rear improve traction on corner exit, taking the YZ250F’s renowned agile handling to the next level on track. Compact bodywork featuring ultra-slim shrouds as well as a much atter seat, including a single-piece for rapid weight shifting. There’s also a high-e ciency air management system and revised ECU o ering a smooth and controllable response in the bottom end and top end performance. The exhaust has been redesigned to produce a lower sound level, meeting latest noise regulations.
Bilateral aluminium frame
The latest generation YZ250F uses the same frame design as the MXGP racewinning YZ450F. With a lower head pipe and revised tank rails this lightweight bilateral aluminium frame’s improved handling enables you to corner faster and smoother. The lower centre of gravity and reduced weight make the YZ250F more agile than ever – and the revised balance of rigidity and YZ250F-speci c engine mounts give plenty of feel and feedback.
Optimized rider ergonomics
The rider triangle accommodates riders of varying sizes and physiques, o ering better ergonomics with enhanced rider mobility and increased controllability. And the side panels give a tighter and lighter look, while the front fender improves air ow to the radiators for consistent cooling.
Responsive top-end power
The YZ250F is already regarded as one of the most competitive and responsive 250cc 4-stroke engines in the low to mid-rpm range. The latest rear duct air-management system together with a reprogrammed ECU boost the top-end engine performance, making this Motocross Grand Prix race winning machine even more competitive for every rider.
E cient air-management
The high-rpm engine performance has been lauded by the press and owners alike, and the body width is kept to a minimum by the e cient air-management system that channels fresh air from the rear through the spaces between the fuel tank, frame, seat and sidepanels. When it reaches the lightweight airbox the air is pre-cleaned by a vortex that throws particles to the side, reducing air cleaner clogging and making routine maintenance easier.
Revised suspension settings
The YZ250F’s KYB front forks are widely regarded as being amongst the best in class, and the latest generation bike features revised fork settings as well as a hand-adjustable compression damping adjuster. The link-type Monocross rear suspension and KYB shock with new suspension linkage for increased traction on corner exit also runs revised settings. Modi ed exhaust to meet 2025 FIM regulations The YZ250F’s exhaust system has been modi ed to meet the FIM’s 2025 noise regulations, while retaining the bike’s renowned controllable power characteristics and ride.
Engine Engine type 4-stroke;Liquid-cooled;DOHC;4-valves;Single cylinder Displacement 250cc Bore x stroke 77,0 x 53,6 mm Compression ratio 13,8:1 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 system Fuel Injection Chassis Frame Semi double cradle Front suspension system Telescopic fork Front travel 310 mm Rear suspension system link suspension;Swingarm Rear travel 295 mm Front brake Hydraulic Single Disc, Ø270 mm Rear brake Hydraulic Single Disc, Ø240 mm Front tyre 80/100-21 51M Tube type Rear tyre 110/90-19 62M Tube type Caster angle 27°25' Trail 123mm Dimensions Overall length 2185mm Overall width 825mm Overall height 1280mm Seat height 970mm Wheel base 1480mm Minimum ground clearance 350mm Wet weight (including full oil and fuel tank) 105kg Fuel tank capacity 6.2 L Oil tank capacity 0,95 L
