Yamaha WR450F

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The Yamaha WR450F was introduced in late 2002, replacing the Yamaha WR426F. The motorcycle is built on the basis of the cross model Yamaha YZ450F, differing from it in the presence of lighting equipment, engine adjustments (derated, increased flywheel, changed exhaust system, other ignition settings), chassis geometry.

The lineup:

Main competitors:

In 2005, the motorcycle gets a new exhaust system.

In 2007, the Yamaha WR450F receives an aluminum frame, a redesigned plastic, and a new generation of the engine - a new balancer, camshafts, and a modified cylinder head.

Since 2012, the Yamaha WR450F has received fuel injection (instead of a carburetor), a digital transistor ignition system, a new KYB SSS (Speed-Sensitive System) front fork and a changed engine position (the engine was turned back, which slightly shifted the center of gravity and improved handling characteristics).

In 2016, the next update of the Yamaha WR450F was presented. the bike received a new motor with 4 valves instead of 5, the characteristics of the suspensions changed, the diameter of the front brake disc was increased from 250 to 270 mm.

In 2019, the modification receives a slightly modified headlamp design, a new engine with an increased compression ratio (12.8 versus 12.5), an increased capacity of the battery tank (8.3 versus 7.6 liters), and a different suspension geometry.

Photos



Specifications

Specifications Yamaha WR450F:

ModelYamaha WR450F
Motorcycle typehard enduro
Release year2003+
FrameSteel half duplex - WR450F (2003-2006)

Aluminum Half Duplex - WR450F (2007-)

Engine type1-cylinder, 4-stroke
Working volume449 cm³
Bore / stroke95.0 x 63.4mm - WR450F (2003-2015)

97.0 x 60.9 mm - WR450F (2016+)

Compression ratio12.5: 1 - WR450F (2003-2006, 2016-2018)

12.3: 1 - WR450F (2007-2015)

12.8: 1 - WR450F (2019+)

Coolingliquid
Number of valves per cylinderDOHC, 5 Valves - WR450F (2003-2015)

DOHC, 4 valves - WR450F (2016+)

Fuel supply systemCarburetor, 1x Keihin FCR-MX39 - WR450F (2003-2011)

Injector, 1x 44 mm - WR450F (2012+)

Ignition typeCDI - WR450F (2003-2011)

TCI (digital) - WR450F (2012+)

Maximum power41.6 hp (30.6 kW) - on the wheel
Maximum torque38.6 Nm (3.9 kg-m) - on the wheel
Gearbox5-speed
Drive typechain
Front tire size90 / 90-21 (54M)
Rear tire size130 / 90-18 (69M)
Front brakes1 disc, 250mm, 2-piston caliper - WR450F (2003-2015)

Single disc, 270mm, 2-piston caliper - WR450F (2016+)

Rear brakes1 disc, 245 mm, 1-piston caliper
Front suspension48mm Inverted Fork (Fully Adjustable), 300mm Travel - WR450F (2003-2015)

Inverted 48mm Fork (Fully Adjustable), 310mm Travel - WR450F (2016+)

Rear suspensionSwingarm with monoshock (fully adjustable), stroke - 315 mm - WR450F (2003-2006)

Swingarm with monoshock (fully adjustable), stroke - 305 mm - WR450F (2007-2011)

Swingarm with monoshock (fully adjustable), stroke - 300 mm - WR450F (2012-2015)

Swingarm with monoshock (fully adjustable), travel - 317 mm - WR450F (2016+)

Motorcycle length2171 mm - WR450F (2003-2006)

2175 mm - WR450F (2007-2011, 2019+)

2315 mm - WR450F (2012-2015)

2164 mm - WR450F (2016-2018)

Motorcycle width827mm - WR450F (2003-2006)

825 mm - WR450F (2007+)

Motorcycle height1303mm - WR450F (2003-2006)

1295 mm - WR450F (2007-2011)

1275 mm - WR450F (2012-2015)

1280 mm - WR450F (2016-2018)

1270 mm - WR450F (2019+)

Wheelbase1485mm - WR450F (2003-2011)

1475 mm - WR450F (2012-2015)

1465 mm - WR450F (2016-2018)

1480 mm - WR450F (2019+)

Saddle height998mm - WR450F (2003-2006)

980 mm - WR450F (2007-2011)

960 mm - WR450F (2012-2015)

965 mm - WR450F (2016-2018)

955 mm - WR450F (2019+)

Minimum ground clearance (clearance)371mm - WR450F (2003-2006)

365 mm - WR450F (2007-2011)

335 mm - WR450F (2012-2015)

325 mm - WR450F (2016-2018)

320 mm - WR450F (2019+)

Acceleration to 100 km / h
Maximum speed
Fuel tank capacity10.0 L - WR450F (2003-2006)

8.0 L - WR450F (2007-2011)

7.2 L - WR450F (2012-2015)

7.6 L - WR450F (2016-2018)

8.3 L - WR450F (2019+)

Motorcycle weight (dry)112.5 kg - WR450F (2007-2011)
Motorcycle weight (curb)122 kg - WR450F (2003-2006)

129 kg - WR450F (2012-2015)

123 kg - WR450F (2016-2018)

119 kg - WR450F (2019+)

Yamaha Off-Road Motorcycles

Yamaha
85-150 см³YZ85 · WR125 · YZ125
200-250 см³TW200 · TW225 · Serow 225 · Serow 250 · TT-R250 · WR250F · XG250 · YZ250 · YZ250F
400-500 см³WR450F · YZ450F
600-750 см³XT660R

Documentation