Motocross Bikes
2017Yamaha YZ450F
38 fields on record
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.
- Capacity
- 449.7 ccm
- Engine
- Single single, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 111.1 kg
- Seat height
- 975 mm
- Power
- 56.0 HP
What’s new for the 2017 Yamaha YZ450F
vs the 2016| Spec | 2016 | 2017 |
|---|---|---|
| Engine capacity | 449.0 ccm (27.40 cubic inches) | 449.7 ccm (27.44 cubic inches) |
| Weight | 111.1 kg (245.0 pounds) | 111.1 kg (244.9 pounds) |
| Fuel capacity | 7.57 litres (2.00 gallons) | 7.60 litres (2.01 US gallons) |
| Wheelbase | 1,481 mm (58.3 inches) | 1481 mm (58.3 inches) |
Other years
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross racing and hard off-road riding, excelling on tracks and rough terrain rather than street use.
- Built for
- 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.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 449.7 ccm
- Power
- 56.0 HP
- Engine type
- Single single, four-stroke
- Power/weight ratio
- 0.5041 HP/kg
- Bore x stroke
- 97.0 x 60.8 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCI: Transistor Controlled Ignition
- Valves per cylinder
- 4
- Lubrication system
- Wet sump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc
Dimensions & weight
- Wheelbase
- 1481 mm
- Overall length
- 2174 mm
- Overall width
- 826 mm
- Overall height
- 1290 mm
- Seat height
- 975 mm
- Wet weight
- 111.1 kg
- Fuel capacity
- 7.60 litres
- Ground clearance
- 335 mm
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Semi double cradle
- Front suspension
- KYB Speed-Sensitive System, inverted fork: fully adjustable
- Rear suspension
- Monoshock, adjustable preload and rebound damping
- Front wheel travel
- 310 mm
- Rear wheel travel
- 315 mm
- Rake (fork angle)
- 28.0°
Brakes & wheels
- Front brakes
- Single disc. Hydraulic.
- Front brakes diameter
- 250 mm
- Rear brakes
- Single disc. Hydraulic.
- Rear brakes diameter
- 245 mm
- Front tyre
- 80/100-21
- Rear tyre
- 120/80-19
Other
- Color options
- Blue/white
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2008 | 2013 | 2017 | 2018 | 2022 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 449.00 ccm (27.40 cubic inches) | 449.00 ccm (27.40 cubic inches) | 449.70 ccm (27.44 cubic inches) | 449.0 ccm (27.40 cubic inches) | 449.0 ccm (27.40 cubic inches) | 450 ccm (27.5 cubic inches) |
| Dry weight | 99.3 kg (219.0 pounds) | — | — | — | — | — |
| Seat height | 988 mm (38.9 inches) | 1,001 mm (39.4 inches) | 975 mm (38.4 inches) | 975 mm (38.4 inches) | 965 mm (38.0 inches) | 965 mm (38.0 inches) |
| Fuel capacity | 6.81 litres (1.80 gallons) | 6.06 litres (1.60 gallons) | 7.57 litres (2.00 gallons) | 7.57 litres (2.00 gallons) | 6.06 litres (1.60 US gallons) | 6.06 litres (1.60 US gallons) |
| Color options | Team Yamaha Blue/White, White/Red | Team Yamaha Blue/White, White/Red | Blue/white | Blue/white, White | Team Yamaha Blue | — |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Yamaha YZ450F?
The 2017 Yamaha YZ450F has a Capacity of 449.7 ccm (27.44 cubic inches).
What engine power does the Yamaha YZ450F have?
The 2017 Yamaha YZ450F has a Power of 56.0 HP.
How many gears does the Yamaha YZ450F have?
The 2017 Yamaha YZ450F has a Gearbox of 5-speed.
How much does the Yamaha YZ450F weigh?
The 2017 Yamaha YZ450F has a Wet weight of 111.1 kg (244.9 pounds).
Shop this bike
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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.
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