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YZ250X

YZ250X

Light, powerful and tuned for cross country competition, the YZ250X is Yamaha's ultimate two-stroke woods racer. 

Based on the legendary 249cc YZ liquid-cooled reed-valve-inducted two-stroke engine, the YZ250X is focused on off-road competition featuring an 18-inch rear wheel, wide-ratio gearing - five speed in this case - standard side stand, sealed O-ring chain, reserve fuel petcock, and scraper between the fork's dust and oil seal, all adding up to exciting performance.     

Features

2 stroke power tuned for off road

2 stroke power tuned for off road

Legendary YZ250 249cc liquid-cooled reed-valve-inducted two-stroke engine - focused on making a wide, controllable power character ideal for off road racing.

YZ250 based frame

YZ250 based frame

A carefully engineered, advanced aluminium frame and swingarm give the YZ250X the famous handling proven by the championship winning YZ250 motocross machine on tracks around the world. Tips the scales at just 104kg with all fluids – which makes it lighter than a four-stroke.

Wide-ratio gearing

Wide-ratio gearing

Smooth-shifting, five-speed, wide-ratio transmission ensures proper gearing from tight woods sections to wide-open fire roads.

Compact Exhaust

Compact Exhaust

The exhaust expansion chamber is designed especially for the YZ250X, and is narrow for clearance on tight, technical trails, while still providing excellent exhaust efficiency.

Cross-country features

Cross-country features

The YZ250X is focused on off-road competition and receives an 18-inch rear wheel, wide-ratio gearing - five speed in this case -  standard side stand, sealed O-ring chain, reserve fuel petcock, lightweight bar pad, headlight and scraper between the fork's dust and oil seal, all adding up to exciting performance.

Enduro ergonomics

Enduro ergonomics

A racy ‘gripper’ type seat and narrow fuel tank combine with a tapered aluminium handlebar and adjustable mounts to create greater freedom of movement and more comfortable ergonomics for riders.

Enduro-specific wheels and tyres

Enduro-specific wheels and tyres

Cross-country-spec Dunlop Geomax MX33 tyres front and rear are ready to head straight to the races. An 18-inch rear tyre has a tall sidewall for improve comfort and reduce pinch flats.

Industry-leading KYB fork

Industry-leading KYB fork

The fully adjustable KYB 48mm forks now feature tool-free compression adjustment at the top of each fork leg. The Speed-Sensitive System uses piston speed to control the damping force for super-precise handling, superb bump absorption and 300mm of suspension travel.

Proven braking performance

Proven braking performance

A high performance braking system features large front pistons, a rigid caliper, a 270mm front rotor with a large pad contact area, and 240mm rear rotor - all combining to provide exceptional braking power and feel. 
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Technical Specification

Engine

Engine Type: Liquid-cooled, 2-stroke, reed valve induction

Displacement (cc): 249.0

Bore x Stroke (mm): 66.4 x 72.0

Compression Ratio: 7.9 - 9.4 : 1

Lubrication System: Premix

Fuel Management: PWK38S Keihin

Ignition: CDI

Starter System: Kick

Fuel Tank Capacity (L): 7.0

Final Transmission: Chain

Transmission: Constant mesh 5-speed

Chassis

Frame Type: Aluminium controlled filled semi double cradle

Suspension Front: Telescopic forks, 300mm travel

Suspension Rear: Swingarm (link suspension), 315mm travel

Brakes Front: Hydraulic single disc, 270mm

Brakes Rear: Hydraulic single disc, 240mm

Tyres Front: 80/100-21 51M Tube type

Tyres Rear: 110/100-18 64M Tube type

Dimensions

Length (mm): 2185

Width (mm): 825

Height (mm): 1290

Seat Height (mm): 975

Wheelbase (mm): 1485

Ground Clearance (mm): 360

Wet Weight (kg): 104

Gallery

Resources

2026 Off Road Brochure

2026 Off Road Brochure

Download Specification Sheet

Download Specification Sheet

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Next Steps

Interested? Call Racecourse Motors on 02 9314 7700

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