Compact, light and powerful 450cc engine
The WR450F is equipped with Yamaha’s most sophisticated off-road competition engine from the 2022 YZ450F motocross model. Delivering outstanding levels of power at all engine speeds, this lightweight and compact powerplant runs with an enduro-specific ECU for a wide spread of winning performance.
High efficiency cylinder head and lightweight piston
Equipped with lightweight magnesium covers, the WR450F’s cylinder head gives excellent combustion efficiency – and its front facing inlet contributes towards the bike’s idealized mass centralization. The lightweight piston gives instantaneous throttle response at all revs – and the intake and exhaust camshafts are positioned to minimize the dimensions of this compact high-tech engine.
Lightweight aluminium beam frame
The WR450F is equipped with 2022 YZ450F-type aluminium bilateral beam frame that has been retuned for enduro. Manufactured with thin main spars and thick bottom tubes – as well as specially developed engine plates – this enduro-specific frame gives accurate feedback over bumps together with a strong feeling of connectivity with the track surface.
The industry-leading speed sensitive front forks are the same design as used on the 2022 YZ450F and feature special enduro-specific settings and full adjustability – enabling you to fully exploit the high levels of engine performance. The lightweight link-type rear end also uses special enduro settings to give excellent traction with outstanding bump absorption.
Yamaha Power Tuner for easy smartphone tuning
The WR450F pioneered the use of advanced digital technology by being the first enduro bike to enable remote wireless engine tuning. Simply download the free Power Tuner app to your smartphone and you can upload two engine mappings that enable you to make instant changes to the fuel/air mix and ignition timing to suit the track conditions and weather – without even opening your toolbox!
Handlebar-mounted adjustable mapping switch
Whether you’re racing or having fun on the trail, surface conditions and weather can change at any time. Pre-loaded with an aggressive map as well as a high traction map, the handlebar-mounted adjustable mapping switch means that you can instantly select a different engine running mode while on the move.
Strong stopping power
Featuring a compact caliper with large diameter pistons – as well as special high friction pads giving a large contact area with the rotor – the WR450F’s powerful 270mm front disc brake enables you to save valuable time in tight sections and gives you a high degree of controllability.
Compact multi-function display
The compact multi-function display gives you all the information you need on the track or trail. The high-contrast LCD display includes an odometer, two tripmeters, clock and timer/stopwatch and low fuel warning light – and the fuel consumption indicator allows you to accurately plan your fuel stops.
High-efficiency angled radiators
The WR450F is equipped with large-capacity angled radiators that are designed to face the incoming air more directly for more effective cooling. And with a thermostatically controlled fan fitted as standard, the high-performance 450cc engine is designed to keep its cool in the most extreme conditions.
Tough wide ratio 5-speed transmission
Enduro is tough on the rider and the bike – and so the WR450F runs with a specially designed 5-speed wide ratio transmission. Featuring gears with a larger surface area that spread the load – together with a WR-specific shift drum and selector – this durable transmission and heavy-duty clutch are built to deliver slick gear shifting all day long.
Dynamic Icon Blue colour
In the off-road world, blue means Yamaha – and every bike in the enduro and motocross range is finished in a dynamic Icon Blue colour. Featuring in-mould graphics that resist wear and tear – and equipped with blue front and side plates – the WR450F comes with the full-factory look as standard!
Compact electric starter
The WR450F’s compact electric starter ensures quick and easy starting on hills and in tight situations – as well as improving your chances of getting the holeshot at cross country races with a dead engine start.
Technical SpecificationsDownload Factsheet
- Engine type
- 4-valves, 4-stroke, Liquid-cooled, DOHC, Single cylinder
- Bore x stroke
- 97,0 x 60,8 mm
- Compression ratio
- 13,0 : 1
- Lubrication system
- Wet sump
- Clutch Type
- Wet, Multiple Disc
- Ignition system
- Starter system
- Transmission system
- 5-speed, Constant Mesh
- Final transmission
- Fuel Injection
- Aluminium Bilateral Beam
- Caster Angle
- 116 mm
- Front suspension system
- KYB® fork, fully adjustable inverted twin chamber with speed sensitive travel
- Rear suspension system
- (Link type suspension), Swingarm
- Front travel
- 310 mm
- Rear Travel
- 317 mm
- Front brake
- Hydraulic single disc, Ø270 mm
- Rear brake
- Hydraulic single disc, Ø245 mm
- Front tyre
- 90/90-21 54R Tube type
- Rear tyre
- 140/80-18 70R Tube type
- Overall length
- 2.175 mm
- Overall width
- 825 mm
- Overall height
- 1.270 mm
- Seat height
- 955 mm
- Wheel base
- 1.480 mm
- Minimum ground clearance
- 320 mm
- Wet weight (including full oil and fuel tank)
- 119 kg
- Fuel tank capacity
- 7,9 L
- Oil tank capacity
- 0,9 L