What category is the 2011 Yamaha YZ450F?

The 2011 Yamaha YZ450F has a Category of Cross / motocross.

What is the engine size of the 2011 Yamaha YZ450F?

The 2011 Yamaha YZ450F has a Capacity: of 449.00 ccm (27.40 cubic inches).

What type of engine does the 2011 Yamaha YZ450F have?

The 2011 Yamaha YZ450F has a Engine type of Single cylinder, four-stroke.

Is the 2011 Yamaha YZ450F air cooled or liquid cooled?

The 2011 Yamaha YZ450F has a Cooling system of Liquid.

How many gears does the 2011 Yamaha YZ450F have?

The 2011 Yamaha YZ450F has a Gearbox of 5-speed.

How much does the 2011 Yamaha YZ450F weigh?

The 2011 Yamaha YZ450F has a Weight incl. oil, gas, etc of 111.1 kg (245.0 pounds).

What is the seat height of the 2011 Yamaha YZ450F?

The 2011 Yamaha YZ450F has a Seat height of 998 mm (39.3 inches) If adjustable, lowest setting..

Yamaha YZ450F - 2011 Specifications and Reviews

Name: 2011 Yamaha YZ450F
Brand: Yamaha

The 2011 Yamaha YZ450F is a competitive four-stroke motocross bike engineered for amateur and professional racers seeking reliable power delivery. Its 449cc liquid-cooled engine features titanium valves and fuel injection for consistent performance across varied terrain. Known for aggressive handling and a narrow chassis, the YZ450F excels in sand and hard-pack racing environments.

⇄ Compare against another bike 📅 All Years

2011

❮❯

Add/Upload pictures for this motorcycle

General information
Category	Cross / motocross
Year	2011
Model	Yamaha YZ450F

Engine and Transmission Specifications
Transmission type,final drive	Chain
Gearbox	5-speed
Cooling system	Liquid
Lubrication system	Dry sump
Ignition	CDI
Fuel control	DOHC
Fuel system	Injection. Yamaha Fuel Injection (YFI), Keihin 44mm
Valves per cylinder	4
Bore x stroke	97.0 x 60.8 mm (3.8 x 2.4 inches)
Compression	12.5:1
Engine details	Titanium valves
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	120/80-19
Front tyre dimensions	80/100-21
Rear suspension travel	315 mm (12.4 inches)
Rear suspension	KYB Fully adjustable single shock
Front suspension	KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel
Physical measures and capacities
Oil capacity	1.20 litres (0.08 quarts)
Fuel capacity	6.17 litres (1.63 gallons)
Wheelbase	1,491 mm (58.7 inches)
Ground clearance	381 mm (15.0 inches)
Overall width	823 mm (32.4 inches)
Overall length	2,192 mm (86.3 inches)
Overall height	1,311 mm (51.6 inches)
Seat height	998 mm (39.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	111.1 kg (245.0 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Modifications compared to previous model	New clutch lever and pushrod for more consistent clutch feel during long motos.
Color options	White/Red, Team Yamaha Blue/White)
Factory warranty	30 Day (Limited Factory Warranty)
Starter	Electric

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

2011 Yamaha YZ450F Rider Ergonomics Assessment

Your height

Inseam (optional)

Units

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 998mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with cannot reach comfortably on the 2011 Yamaha YZ450F, with a moderate knee angle of around 90 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.

Find bikes that fit your height →