Motocross Bikes
2015Yamaha YZ450F
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The 2015 Yamaha YZ450F is a high-performance four-stroke motocross bike designed for intermediate to advanced riders seeking competitive racing capability. Known for its potent engine delivery and responsive handling, it excels in both sandy and hard-packed terrain. The electric starter and user-friendly chassis make it accessible while maintaining the power needed for serious race application.
- Capacity
- 449.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 99.3 kg
- Seat height
- 975 mm
- Power
- 56.0 HP (41.2 kW)
What’s new for the 2015 Yamaha YZ450F
vs the 2014| Spec | 2014 | 2015 |
|---|---|---|
| Seat height | 1001 mm (39.4 inches) | 975 mm (38.4 inches) |
| Fuel capacity | 6.10 litres (1.61 US gallons) | 7.60 litres (2.01 US gallons) |
| Front suspension | KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel | KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2 in travel |
| Rear suspension | KYB Fully adjustable single shock | Monoshock, adjustable preload and rebound damping, 12.4 in travel |
| Front brakes | Single disc. Hydraulic disc. Hydraulic disc. | Single disc. Hydraulic. |
| Rear brakes | Single disc | Single disc. Hydraulic. |
Other years
2004
2005
2006
2007
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
- 449.0 ccm
- Power
- 56.0 HP (41.2 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.5639 HP/kg (dry)
- Bore x stroke
- 97.0 x 60.8 mm
- Compression
- 12.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- TCI
- 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
- Dry weight
- 99.3 kg
- Wet weight
- 111.1 kg
- Fuel capacity
- 7.60 litres
- Ground clearance
- 335 mm
- Oil capacity
- 1.20 litres
Chassis & suspension
- Frame
- Aluminum Bilateral Beam frame
- Front suspension
- KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2 in travel
- Rear suspension
- Monoshock, adjustable preload and rebound damping, 12.4 in travel
- Front wheel travel
- 310 mm
- Rear wheel travel
- 315 mm
- Rake (fork angle)
- 28.0°
- Trail
- 119 mm
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
- Team Yamaha Blue/White, White/Red
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 | 2004 | 2010 | 2015 | 2016 | 2021 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 449 cc | 450 cc |
| Dry weight | 97 kg | 99 kg | 99 kg | 99 kg | 99 kg | 99 kg |
| Seat height | 995 mm | 998 mm | 975 mm | 975 mm | 965 mm | 965 mm |
| Fuel capacity | 6.8 L | 6.1 L | 7.6 L | 7.6 L | 6.1 L | 6.1 L |
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 2015 Yamaha YZ450F has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Yamaha YZ450F have?
The 2015 Yamaha YZ450F has a Power of 56.0 HP (41.2 kW).
How many gears does the Yamaha YZ450F have?
The 2015 Yamaha YZ450F has a Gearbox of 5-speed.
How much does the Yamaha YZ450F weigh?
The 2015 Yamaha YZ450F has a Dry weight of 99.3 kg (218.9 pounds).
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