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WR250F

Many riders prefer to punt a 450cc machine in the bush, but here’s the news – most of us would be quicker on this new WR250F...

With DNA lifted straight out of our championship winning YZ250F, the WR250F is the ultimate singletrack express. The new model benefits from a range of major technical changes - such as an all-new cylinder head - that are aimed at delivering increased performance and enhanced rideability.

Using feedback from our factory teams, we’ve added more power in the mid to high end and fine-tuned the frame in order to ensure that riders can fully exploit that increased engine performance.

A high degree of stability combine with revised industry leading twin chamber speed sensitive KYB forks and matching rear shock to deliver an unbeatable package when the tails get tight and technical.

WR250F. Ride smarter.

Features

Reverse cylinder head

The WR250F's innovative reverse cylinder head offers many advantages over a conventional design. These include increased intake and exhaust efficiency, as well as enhanced mass centralisation thanks to the use of a top-mounted air filter and underseat fuel tank. Yamaha's engineers have taken this cutting-edge technology to the next level, and developed a new reverse cylinder head that offers even stronger mid to high rpm pulling power.

Aluminium bilateral beam frame

Using feedback from our factory teams, Yamaha has been able to fine-tune the frame in order to ensure that WR250F riders are able to fully exploit the increased engine performance of the uprated model. The new frame is around 12mm wider in the area behind the swingarm pivot point, and this increased torsional rigidity ensures a higher degree of handling stability.

Speed sensitive suspension

Increased rideability and comfort have been achieved on the WR250F through a number of revisions to the front and rear suspension. The class-leading Air Oil Separate (AOS) KYB front forks feature slightly reduced oil capacity and new factory suspension settings to give improved rider feedback and improved stability in ruts, bumps and corners.

Enduro clutch

The WR250F's transmission is equipped with a newly developed clutch that has been specially developed to handle hour after hour of punishment. And to optimise the performance of the new fuel injected engine, there's a purpose-built wide ratio 6-speed transmission.

Competition Off-road Kit

The model comes with a competition off-road kit so owners can choose between full ADR compliant with road-legal indicators and mirrors – or off road spec for closed course competition. The Australian-only off road kit now features a new lightweight Polisport headlight and lightweight Barkbuster hand guards.

Optional Power Tuner

Riders of all abilities can also use the optional Yamaha Power Tuner to adjust the WR250F’s power characteristics. This compact device plugs straight into the bike without the need for a PC, and enables the rider or mechanic to fine-tune the engine performance in seconds to suit the track conditions.

Technical Specification

Engine Type Liquid-cooled, 4-stroke, DOHC, 4-valve
Displacement (cc) 250.0
Bore x Stroke (mm) 77.0 x 53.6
Compression Ratio 13.5 : 1
Lubrication System Wet sump
Fuel Management Fuel Injection
Ignition TCI
Starter System Electric
Fuel Tank Capacity (L) 7.5
Final Transmission Chain
Transmission Constant mesh 6-speed

Frame Type Bilateral beam
Suspension Front Telescopic forks, 310mm travel
Suspension Rear Swingarm (link suspension), 318mm travel
Brakes Front Hydraulic single disc, 270mm
Brakes Rear Hydraulic single disc, 245mm
Tyres Front 80/100-21 51M Tube type
Tyres Rear 110/100-18 64M Tube type

Length (mm) 2165
Width (mm) 825
Height (mm) 1280
Seat Height (mm) 965
Wheelbase (mm) 1465
Ground Clearance (mm) 325
Wet Weight (kg) 113

Colours

Gallery & Videos

Brochure

Blue & White World (4MB APPLICATION/PDF)