2021 YAMAHA YZ450F Monster


Featuring Yamaha’s advanced racing technology, the new 2020 YZ450F has been updated to give racers the edge right out of the gate.

Product Description

New for 2021: Monster Energy Yamaha Racing Editions
Stand out from the crowd. The 2021 YZ250F and 2021 YZ450F now come in a new Monster Energy Yamaha Racing Editions. With a factory team-inspired colour and graphics package, riders can feel as if they too are a part of a Yamaha championship-winning team. Monster Energy is a major sponsor of Yamaha race teams globally including the MotoGP team, US supercross team – featuring SX West champion Dylan Ferrandis. Plus our own factory race team – and Australia’s most winning outfit – the CDR Yamaha  Monster Energy team.

2021 YZ450F: Tune into Victory
The 2021 YZ450F returns with all of the class-leading features first introduced on the 2020 YZ450F, including an updated engine, cylinder head, frame and technology features for a lighter, more powerful and better handling motocross experience. Racers can achieve quicker, smoother race starts through Yamaha’s Launch Control System, adjust their on-track performance using the onboard wireless connectivity through the free of charge Yamaha Power Tuner App right from their phone, and choose between two user-defined ECU maps on the fly through the handlebar-mounted dual-mode engine map switch.


Engine Type Liquid-cooled 4-stroke, DOHC, 4-valve
Displacement (cc)449.0
Bore x Stroke (mm)97.0 × 60.9
Compression Ratio 13.0 : 1
Lubrication System Wet sump
Fuel Management Fuel Injection
Ignition TCI
Starter System Electric
Fuel Tank Capacity (L)6.2
Final Transmission Chain
Transmission Constant mesh, 5-speed

Frame TypeBilateral Beam
Suspension FrontTelescopic forks, 310mm travel
Suspension RearSwingarm (link suspension), 317mm travel
Brakes FrontHydraulic single disc, 270mm
Brakes RearHydraulic single disc, 240mm
Tyres Front80/100-21 Dunlop MX33
Tyres Rear120/80-19 Dunlop MX33

Length (mm)2185
Width (mm)825
Height (mm)1275
Seat Height (mm)965
Wheelbase (mm)1481
Ground Clearance (mm)330
Wet Weight (kg)111