What category is the 2025 Yamaha YZ450F?

The 2025 Yamaha YZ450F has a Category of Cross / motocross.

What is the engine size of the 2025 Yamaha YZ450F?

The 2025 Yamaha YZ450F has a Capacity: of 450.0 ccm (27.46 cubic inches).

How many gears does the 2025 Yamaha YZ450F have?

The 2025 Yamaha YZ450F has a Gearbox of 5-speed.

Yamaha YZ450F - 2025 Specifications and Reviews

Name: 2025 Yamaha YZ450F
Brand: Yamaha

The 2025 Yamaha YZ450F is a competitive motocross machine engineered for serious off-road racers and experienced riders seeking maximum performance. Its potent liquid-cooled 450cc four-stroke engine with titanium valves and advanced fuel injection delivers aggressive power delivery and reliability on demanding terrain. Known for its responsive handling and battle-proven platform, it remains a top choice for competitive motocross and high-level trail riding.

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2025

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General information
Color Options	Team Yamaha Blue
Price	US$ 9999. MSRP depends on country, taxes, accessories, etc.
Category	Cross / motocross
Year	2025
Model	Yamaha YZ450F
Engine and Transmission Specifications
Starting	Electric
Clutch	Multiplate, wet
Final Drive	Chain (final drive)
Gearbox	5-speed
Cooling System	Liquid
Ignition	TCI: Transistor Controlled Ignition
Fuel Control	Double Overhead Cams/Twin Cam (DOHC)
Induction	Injection. MikuniÂ® fuel injection, 44mm
Valves Per Cylinder	4
Bore x Stroke	97.0 x 60.8 mm (3.8 x 2.4 inches)
Compression Ratio	13.0:1
Engine Details	Titanium-valves
Engine Type	Single cylinder, four-stroke
Capacity:	450.0 ccm (27.46 cubic inches)
Physical measures and capacities
Fuel Capacity	6.06 litres (1.60 US gallons)
Wheelbase	1481 mm (58.3 inches)
Ground Clearance	351 mm (13.8 inches)
Overall Width	831 mm (32.7 inches)
Overall Length	2179 mm (85.8 inches)
Overall Height	1275 mm (50.2 inches)
Seat Height	965 mm (38.0 inches) If adjustable, lowest setting.
Wet Weight	108.9 kg (240.0 pounds)

Yamaha YZ450F dimensions and frame
Seat	Long, two-tone, motocross-style seat
Wheels	Dunlop Geomax MX33 tires
Rear Brakes	Single disc. Hydraulic.
Brake Disc Diameter	240 mm (9.4 inches)
Front Brakes	Single disc. Hydraulic.
Rear Tyre	120/80-19
Front Tyre	80/100-21
Rear Wheel Travel	315 mm (12.4 inches)
Rear Suspension	KYBÂ® single shock; fully adjustable
Front Wheel Travel	310 mm (12.2 inches)
Front Suspension	KYB Speed-Sensitive System, inverted fork: fully adjustable
Trail	119 mm (4.7 inches)
Frame	Bilateral beam frame, aluminum
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Chain size	520
Spark plugs	NGK CPR8EA-9
Brake fluid	DOT 4
Engine oil	10W-30 or 20W-50
Update specs	Report missing specs or required updates.
Warranty	30 Day Limited Factory Warranty
Oil capacity	1.00 litres (1.06 US quarts)
Rake (fork angle)	26.9Â°
Lubrication system	Wet sump

Performance Profile & Rider Fit

Best For

Track90%

City10%

Cornering88%

Daily Riding10%

Touring10%

Passenger5%

Rider Profile

Best For	This is a full-size open-class motocross weapon best suited to intermediate through expert riders comfortable with aggressive power delivery and a tall, firm chassis.
Purpose	Built purely for motocross racing and hard off-road riding, excelling on tracks and rough terrain rather than street use.
Rider Fit	Its 38-inch seat height, lightweight 243 lb wet weight, and race-oriented ergonomics demand good rider fitness, leg length, and standing-riding technique.
Character	Sharp, high-revving, and razor-responsive, it rewards committed, active riding with explosive acceleration and precise cornering manners.
Not Ideal For	It is not suited for commuting, touring, passengers, or casual low-speed street riding due to its lack of lights, mirrors, and road-going comfort features.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2025 Yamaha YZ450F Rider Ergonomics Assessment

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Feet:

At 965mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2025 Yamaha YZ450F, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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