What category is the 2005 Yamaha YZ 450 F?

The 2005 Yamaha YZ 450 F has a Category of Cross / motocross.

What is the engine size of the 2005 Yamaha YZ 450 F?

The 2005 Yamaha YZ 450 F has a Capacity: of 449.00 ccm (27.40 cubic inches).

What type of engine does the 2005 Yamaha YZ 450 F have?

The 2005 Yamaha YZ 450 F has a Engine type of Single cylinder, four-stroke.

Is the 2005 Yamaha YZ 450 F air cooled or liquid cooled?

The 2005 Yamaha YZ 450 F has a Cooling system of Liquid.

How many gears does the 2005 Yamaha YZ 450 F have?

The 2005 Yamaha YZ 450 F has a Gearbox of 5-speed.

What is the seat height of the 2005 Yamaha YZ 450 F?

The 2005 Yamaha YZ 450 F has a Seat height of 996 mm (39.2 inches) If adjustable, lowest setting..

Yamaha YZ 450 F - 2005 Specifications and Reviews

Name: 2005 Yamaha YZ 450 F
Brand: Yamaha

The 2005 Yamaha YZ450F is a high-performance motocross machine built for competitive and experienced riders seeking aggressive trail and track performance. Powered by a potent 449cc four-stroke single-cylinder engine with a 12.5:1 compression ratio, it delivers impressive power and torque. The bike is renowned for its responsive handling, advanced Kayaba inverted fork suspension, and race-ready capabilities that made it a dominant force in 450cc motocross competition.

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General information
Category	Cross / motocross
Year	2005
Model	Yamaha YZ 450 F

Engine and Transmission Specifications
Transmission type,final drive	Chain
Gearbox	5-speed
Cooling system	Liquid
Fuel control	SOHC
Fuel system	Carburettor
Valves per cylinder	1
Bore x stroke	95.0 x 63.4 mm (3.7 x 2.5 inches)
Compression	12.5:1
Engine type	Single cylinder, four-stroke
Capacity:	449.00 ccm (27.40 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes diameter	245 mm (9.6 inches)
Rear brakes	Single disc
Front brakes diameter	250 mm (9.8 inches)
Front brakes	Single disc
Rear tyre dimensions	110/90-19
Front tyre dimensions	80/80-21
Rear suspension travel	318 mm (12.5 inches)
Rear suspension	Kayaba single shock w/adjustable preload, compression and rebound damping and separate hi/lo-speed compression adjuster
Front suspension travel	300 mm (11.8 inches)
Front suspension	48mm Kayaba inverted telescopic fork w/adjustable compression and rebound damping
Rake (fork angle)	27.2°
Physical measures and capacities
Fuel capacity	6.81 litres (1.80 gallons)
Wheelbase	59 mm (2.3 inches)
Ground clearance	371 mm (14.6 inches)
Overall width	828 mm (32.6 inches)
Overall length	2,172 mm (85.5 inches)
Overall height	996 mm (39.2 inches)
Seat height	996 mm (39.2 inches) If adjustable, lowest setting.
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Color options	Team Yamaha Blue/White

Performance Profile & Rider Fit

Best For

Track55%

City5%

Cornering60%

Daily Riding8%

Touring5%

Passenger0%

Rider Profile

Best For	This is a full-race competition motocross bike best suited to experienced off-road or motocross riders, not beginners.
Purpose	Built purely for motocross racing and serious off-road riding, not for commuting or general road use.
Rider Fit	Its tall 988mm seat height, minimal weight, and aggressive suspension travel demand good rider fitness, strength, and off-road skill to control effectively.
Character	A light, high-revving, race-bred single-cylinder machine that rewards aggressive riding, quick direction changes, and confident throttle control.
Not Ideal For	Not suitable for riders wanting a comfortable commuter, a passenger-friendly bike, or any form of long-distance road touring.

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

Rider Fit Visualizer

2005 Yamaha YZ 450 F Rider Ergonomics Assessment

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Feet:

At 996mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2005 Yamaha YZ 450 F, with a moderate knee angle of around 90 degrees and an upright riding position.

Data quality: estimated (wheelbase estimated from this category's typical bike, not this model's own spec). 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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