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YZ450FX

The YZ450FX is all new for 2019 and runs all the latest frame, suspension, engine and electronics upgrades found on the YZ450F – including the Yamaha’s exclusive smartphone tuning. We’ve developed the FX specifically for off-road competition.So as well as enduro engine and suspension settings, the FX has an 18 in rear wheel, bashplate, sealed O-ring chain, fuel level warning indicator and an aluminium sidestand.

YZ450FX – when you want to push in the bush.

*Available with optional recreational rego kit.

*Images are shown for reference only, product specifications and data are subject to change without notice.

Features

A high-compression cylinder head, forged piston, aggressive cam profiles, cylinder geometry and much more work together to give YZ450FX riders the ideal power spread in challenging off-road racing conditions.

Yamaha’s bilateral beam aluminum frame features main spars, FX-specific engine mounts and an engine mounting position that centralises mass and provides an ideal balance between cornering feel and straight-line confidence.

A handlebar-mounted map switch allows the rider to quickly select between preloaded engine maps—loaded and configured in the Power Tuner app—to account for changing track and weather conditions.

The YZ450FX features stylish bodywork from tip to tail, including a large 7.5 litre, mass-centralised fuel tank, the body design is narrow for more comfortable knee grip and control feeling, while the narrower and lower seat gives the rider additional room to move aboard the machine.

Yamaha’s exclusive Power Tuner app puts the flexibility and precision tunability of the GYTR® Power Tuner into your smartphone. Make fueling and ignition timing changes instantly and upload them to the bike via the onboard WiFi system for the ultimate in track-side tuning.

Colours

Specifications

Engine

Engine Type	Liquid-cooled, 4-stroke, DOHC, 4-valve
Displacement	449 cc
Bore x Stroke	97.0 x 60.8 mm
Compression Ratio	12.8 : 1
Fuel Management	EFI
Ignition	TCI
Starter System	Electric
Fuel Tank Capacity	7.5 L
Final Transmission	Chain
Transmission	5-speed

Dimensions

Length	2175 mm
Width	825 mm
Height	1280 mm
Seat Height	955 mm
Wheelbase	1480 mm
Ground Clearance	320 mm
Wet Weight	116 kg with 7.5 litres of fuel

Chassis

Frame Type	Bilateral Beam
Suspension Front	Telescopic fork, 310mm travel
Suspension Rear	Swingarm,link suspension, 318mm travel
Brakes Front	Single disc, Ø 270mm
Brakes Rear	Single disc, Ø 245mm
Tyres Front	80/100-21
Tyres Rear	120/80-18

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