2025 YZ450F

Here to continue its reign, the AMA pro Motocross & Supercross champ is back to be even better – lighter, slimmer, and more powerful. With best-in-class agility and suspension performance, the 2025 YZ450F packs the ultimate racer experience for all with offroad four-stroke technology wrapped in iconic YZ heritage.

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Chassis
Brakes (Front)	270 mm, floating disc / twin piston caliper
Brakes (Rear)	240 mm, disc / single piston caliper
Suspension (Front)	Fully adjustable 48mm inverted fork / 310 mm (12.2 in.) wheel travel
Suspension (Rear)	Fully adjustable linkage-type / 317 mm (12.4 in.) wheel travel
Tires (Front)	80/100-21 Dunlop® Geomax MX33F
Tires (Rear)	120/80-19 Dunlop® Geomax MX33

Critical Data
Colour(s)	Yamaha Racing Blue Monster Energy Yamaha Racing Edition
Fuel Capacity	6.2 litres
Ground Clearance	350 mm (13.8 in.)
Height	1,275 mm (50.2 in.)
Length	2,180 mm (85.8 in.)
Seat Height	825 mm (32.5 in.)
Wet Weight	109 kg (240 lb)
Wheelbase	1,480 mm (58.3 in.)
Width	830 mm (32.7 in.)

Engine
Bore and Stroke	97.0 x 60.8 mm
Compression Ratio	13.0:1
Displacement	450 cc
Engine	Liquid-cooled, DOHC, 4-valve (titanium), single
Final Drive	Chain
Fuel Delivery	Mikuni 44mm throttle body F.I.
Ignition / Starting	TCI / Electric
Lubrication	Wet sump
Transmission	Constant mesh, 5-speed