2025 WR450F

Based on the benchmark-setting YZ450F motocrosser, the WR450F is made to be versatile. Lighter, more compact, and with a lower centre of gravity, the WR450F packs enhanced performance in the bush at all speeds. With a more tractable and longer pulling engine, revised ECU settings, improved chassis, lightweight brake system and more, the WR450F offers increased performance and handling in the toughest off-road conditions.

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Chassis
Brakes (Front)	270 mm floating disc / twin-piston caliper
Brakes (Rear)	245 mm disc / single-piston caliper
Suspension (Front)	Fully adj. inverted fork / 300 mm (11.8") wheel travel
Suspension (Rear)	Fully adj. Link Monocross / 306 mm (12.0") wheel travel
Tires (Front)	80/100-21
Tires (Rear)	120/90-18

Critical Data
Colour(s)	Team Yamaha Blue
Fuel Capacity	7.9 litres (1.7 Imp. gal.)
Ground Clearance	330 mm (13")
Length	2,170 mm (85.4")
Seat Height	955 mm (37.6")
Wet Weight	257 lbs
Wheelbase	1,470 mm (57.9")

Engine
Bore and Stroke	97 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 44 mm throttle body F.I.
Ignition / Starting	TCI / Electric
Lubrication	Wet sump
Transmission	Constant mesh, 5-speed