What category is the 2017 Yamaha YZ450F?

The 2017 Yamaha YZ450F has a Category of Cross / motocross.

What is the engine size of the 2017 Yamaha YZ450F?

The 2017 Yamaha YZ450F has a Capacity: of 449.70 ccm (27.44 cubic inches).

What type of engine does the 2017 Yamaha YZ450F have?

The 2017 Yamaha YZ450F has a Engine type of Single cylinder, four-stroke.

Is the 2017 Yamaha YZ450F air cooled or liquid cooled?

The 2017 Yamaha YZ450F has a Cooling system of Liquid.

How many gears does the 2017 Yamaha YZ450F have?

The 2017 Yamaha YZ450F has a Gearbox of 5-speed.

How much does the 2017 Yamaha YZ450F weigh?

The 2017 Yamaha YZ450F has a Weight incl. oil, gas, etc of 111.1 kg (245.0 pounds).

What is the seat height of the 2017 Yamaha YZ450F?

The 2017 Yamaha YZ450F has a Seat height of 975 mm (38.4 inches) If adjustable, lowest setting..

Yamaha YZ450F - 2017 Specifications and Reviews

Name: 2017 Yamaha YZ450F
Brand: Yamaha

The 2017 Yamaha YZ450F is a competitive four-stroke motocross bike designed for intermediate to advanced off-road racers. Known for its potent 450cc engine and responsive handling, it delivers strong acceleration and precise control across varied terrain. The lightweight chassis, adjustable suspension, and powerful hydraulic brakes make it a formidable choice for riders prioritizing performance and reliability on the track.

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General information
Category	Cross / motocross
Year	2017
Model	Yamaha YZ450F
Engine and Transmission Specifications
Clutch	Wet multi-disc
Transmission type,final drive	Chain
Gearbox	5-speed
Cooling system	Liquid
Lubrication system	Wet sump
Ignition	TCI: Transistor Controlled Ignition
Fuel control	Double Overhead Cams/Twin Cam (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:	449.70 ccm (27.44 cubic inches)

Brakes, suspension, Frame and wheels
Seat	Long, two-tone, motocross-style seat
Rear brakes diameter	245 mm (9.6 inches)
Rear brakes	Single disc. Hydraulic.
Front brakes diameter	250 mm (9.8 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	Monoshock, adjustable preload and rebound damping
Front wheel travel	310 mm (12.2 inches)
Front Suspension	KYB Speed-Sensitive System, inverted fork: fully adjustable
Rake (fork angle)	28.0°
Frame type	Semi double cradle

Physical measures and capacities
Fuel capacity	7.57 litres (2.00 gallons)
Wheelbase	1,481 mm (58.3 inches)
Ground clearance	335 mm (13.2 inches)
Overall width	826 mm (32.5 inches)
Overall length	2,174 mm (85.6 inches)
Overall height	1,290 mm (50.8 inches)
Seat height	975 mm (38.4 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
Starter	Electric
Color options	Blue/white

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

2017 Yamaha YZ450F Rider Ergonomics Assessment

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Feet:

At 975mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2017 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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Rider Reviews

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MotorcycleDB Review

The 2017 Yamaha YZ450F is a powerful and agile motocross bike that delivers exceptional performance on the track. With its lightweight design and advanced technology, this bike offers impressive handling and acceleration. The 450cc engine provides plenty of power for aggressive riding, while the innovative suspension system helps to absorb bumps and jumps with ease. Whether you're a seasoned racer or a novice rider, the Yamaha YZ450F is sure to impress with its precision and responsiveness. Overall, the 2017 Yamaha YZ450F is a top contender in the motocross world, offering riders a winning combination of power, agility, and control. With its advanced features and impressive performance, this bike is a force to be reckoned with on the track. Whether you're tearing up the dirt or tackling tough terrain, the Yamaha YZ450F is a worthy choice for any motocross enthusiast.