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Yamaha YZ450FX for Sale at TeamMoto in QLD, NSW, VIC and ACT | Specifications and Review Information

Based on the benchmark-setting YZ450F motocrosser, the all-new YZ450FX is designed to dominate cross country competition. Lighter, more compact, with improved rider ergonomics, revised chassis, more powerful engine and next-generation Yamaha Power Tuner app all carry over directly from the YZ450F.

Additional modifications tailored toward enhanced cross country performance include a wide-ratio transmission, larger fuel capacity, 18-inch rear wheel, side stand, skid plate, revised ECU and suspension settings, along with a 10mm lower seat height for increased maneuverability in challenging off-road conditions.

Yamaha YZ450FX Team Yamaha Blue

Yamaha YZ450FX 450CC 4-Stroke Engine


The new 2024 YZ450FX's advanced four-stroke engine has been completely redesigned to be lighter, more compact, higher revving and more powerful across the entire rev range. Among the changes are new exhaust and intake port shapes, larger diameter titanium intake valves, new piston, cylinder, crankshaft and balancer assembly, and a switch from wet sump to dry sump lubrication. Additionally, ECU settings are tailored to suit the specific needs of cross country and enduro competition.

Yamaha YZ450FX Adjustable Engine Mapping


New, lightweight handlebar-mounted switchgear allows the rider to quickly select between preloaded engine maps - loaded and configured in the Power Tuner App - to adjust for changing riding conditions. Map 1 provides more responsive, quicker revving engine characteristics while Map 2 provides smoother response and slower revving characteristics for when traction is limited.

Yamaha YZ450FX Bilateral Beam Frame


Striking the perfect balance of precise cornering performance and handling stability, the redesigned aluminium bilateral beam frame consists of more than 10 different aluminium components welded together with YZ450FX-specific XC-tuned engine mounts. The result is a better handling machine with lighter feel, improved bump absorption and increased traction, allowing the rider to enter corners with greater confidence and more line choices.

Yamaha YZ450FX Class Leading Suspension

Class Leading Suspension

World renowned suspension performance straight out of the box. High-spec fully adjustable Speed Sensitive System KYB® coil spring-type fork provides exceptional bump absorption, and now features toolless compression clickers for easy adjustment and new fork covers to help prevent debris damage. The linkage-type rear suspension features a KYB® shock with cross-country focused damping characteristics to match the new YZ450FX's refined chassis.

Yamaha YZ450FX Power Tuner App


The free-of-charge Yamaha Power Tuner App brings the power of the GYTR® Power Tuner to an iOS® or Android® device, allowing owners to adjust air/fuel mixture and ignition timing, log race set-up information, and monitor a range of data such as maintenance and system diagnosis, engine run time, and more. The newest version of the app has been revised to be more user-friendly, with new features include an intuitive "Simple Tuning" slide bar for engine mapping, Traction Control tuning, lap timer, and helpful engine and suspension tuning guides.



With the electric starting system, a 7.8L fuel tank, rugged plastic skid plate, 18-inch rear wheel and XC racing tyres, the YZ450FX is ready to win right out of the box.

Technical Specifications




Engine Type Liquid-cooled, 4-stroke, DOHC, 4-valve
Displacement (cc) 450.0
Bore x Stroke (mm) 97.0 x 60.8
Compression Ratio 13.0 : 1
Lubrication System Dry sump
Fuel Management Fuel Injection
Ignition TCI
Starter System Electric 
Fuel Tank Capacity (L) 7.8
Final Transmission Chain
Transmission Constant mesh 5-speed




Frame Type Bilateral beam
Suspension Front Telescopic forks, 300mm travel
Suspension Rear Swingarm (link suspension), 306mm travel
Brakes Front Hydraulic single disc, 270mm
Brakes Rear Hydraulic single disc, 245mm
Tyres Front 80/100-21 51M
Tyres Rear 120/90-18 65M




Length (mm) 2170
Width (mm) 825
Height (mm) 1265
Seat Height (mm) 955
Wheelbase (mm) 1470
Ground Clearance (mm) 330
Wet Weight (kg) 114