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WR450F

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the all-new WR450F is based on the latest YZ450F that dominated the world MXGP championship, utilising Yamaha’s innovative reverse cylinder head and rearwards slanting cylinder.
WR450F
Enduro
Available
$15,199.00
$14,199.00
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WR450F

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ENGINE

Engine based on the cutting edge YZ450F

The power unit is based on the current YZ450F engine but with specific enduro settings. The reverse fed, mass centralised layout and specifications are the same as the YZ450F engine, but the intake and exhaust systems, fuel injection and ignition advance maps are tuned to provide the fast enduro rider with stronger and longer-lasting pulling power at high rpm.

Free flow air filter contributes to linear response

The filter element features reduced airflow resistance with increased reliability. The new filter and the length of the intake funnel contribute to an excellent feeling of traction and linear characteristics during acceleration and deceleration. A model-specific muffler design is also adopted. And adding rubber seals to the centre positioning pin increases its dust-filtering capability. 

Lighter, tougher clutch

The new WR450F’s clutch adopts the same spec as the 2019 YZ450FX. In order to better handle harsh enduro conditions, a highly heat-resistant friction plate is specced. Also, a new design that eliminates the judder spring is adopted for a lighter clutch lever pull and greater reliability

Wideratio 5speed transmission The new WR450F adopts a wide-ratio 5-speed transmission with the same spec and same gear ratios as the 2019 model YZ450FX. This provides both good off-road performance to clear difficult and technical areas as well as high-speed performance for flat dirt sections. Also, the shapes of the dog gears have been revised.

New smartphone tuning

On board WiFi means that you can tune the new WR450F to different track conditions using your smartphone. The new Power Tuner app allows you to make fueling and ignition timing changes instantly and upload/share them for the ultimate in track-side tuning.

The free Yamaha Power app also allows owners to record race log information and monitor a range of data such as maintenance and system diagnosis, engine run time and more.

2019 WR450F specifications

Overall length

2175 mm

Overall width

825 mm

Overall height

1270 mm

Seat height

955 mm

Wheelbase

1480 mm

Minimum ground clearance

320 mm

Engine type

Liquid-cooled, 4-stroke, DOHC, 4-valve

Cylinder arrangement

Single reverse fed

Displacement

450 cm3

Bore × stroke

97.0×60.9 mm/3.8×2.4 in.

Compression ratio

12.8:1

Starting system type

Electric starter

Lubrication system

Wet sump

Engine oil capacity

0.90 L

Fuel tank capacity

7.9 L

Fuel delivery

Fuel injection

Ignition system type

TCI (Transistor Controlled Ignition)

Primary reduction ratio

2.609 (60/23)

Secondary reduction ratio

3.846 (50/13)

Clutch type

Wet, multiple-disc

Transmission type/Shift type

Constant mesh, 5-speed / Return

Gear ratio (1st–5th)

1st: 2.417 (29/12), 2nd: 1.733 (26/15), 3rd: 1.313 (21/16), 4th: 1.050 (21/20), 5th: 0.840 (21/25)

Frame type

Semi double cradle

Caster angle

27°10′

Trail

116 mm

Weight (with oil and a full fuel tank)

119 kg

Bore × stroke

97.0×60.9 mm

Trail

116 mm

Tyre size (front/rear)

90/90-21 54M (tube type) / 130/90-18 65M (tube type) Metzeler Six Days Extreme

Warranty

Three months, parts only

Colours

Team Yamaha Blue and White

WR450F works..hop manual