Motocross Bikes
2027Yamaha YZ450F
40 fields on record
The Yamaha YZ450F continues as Yamaha's flagship 450cc motocross racer for 2027, powered by a liquid-cooled DOHC single with titanium valves and 44mm Mikuni electronic fuel injection, driven through a constant-mesh 5-speed gearbox and multiplate wet clutch. At a claimed 243 lb wet weight and a 38.0-inch seat height, it remains a purpose-built closed-course competition motocrosser.
- Capacity
- 450.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 99.3 kg
- Seat height
- 965 mm
- Power
- 56.0 HP (41.2 kW)
What’s new for the 2027 Yamaha YZ450F
vs the 2026| Spec | 2026 | 2027 |
|---|---|---|
| Torque | 44.5 Nm (4.5 kgf-m or 32.8 ft.lbs) | not listed |
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
- 450.0 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
- 13.0:1
- 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
- Multiplate, wet
Dimensions & weight
- Wheelbase
- 1476 mm
- Overall length
- 2175 mm
- Overall width
- 830 mm
- Overall height
- 1275 mm
- Seat height
- 965 mm
- Dry weight
- 99.3 kg
- Wet weight
- 110.2 kg
- Fuel capacity
- 6.10 litres
- Ground clearance
- 345 mm
- Oil capacity
- 1.00 litres
Chassis & suspension
- Frame
- Bilateral beam frame, aluminum
- Front suspension
- KYB Speed-Sensitive System, inverted fork: fully adjustable
- Rear suspension
- KYB® single shock; fully adjustable
- Front wheel travel
- 310 mm
- Rear wheel travel
- 315 mm
- Rake (fork angle)
- 26.9°
- Trail
- 122 mm
Brakes & wheels
- Front brakes
- Single disc. Hydraulic.
- Front brakes diameter
- 270 mm
- Rear brakes
- Single disc. Hydraulic.
- Rear brakes diameter
- 245 mm
- Front tyre
- 80/100-21
- Rear tyre
- 120/80-19
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 | 2016 | 2021 | 2027 |
|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 450 cc |
| Dry weight | 97 kg | 99 kg | 99 kg | 99 kg | 99 kg |
| Seat height | 995 mm | 998 mm | 975 mm | 965 mm | 965 mm |
| Fuel capacity | 6.8 L | 6.1 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 2027 Yamaha YZ450F has a Capacity of 450.0 ccm (27.46 cubic inches).
What engine power does the Yamaha YZ450F have?
The 2027 Yamaha YZ450F has a Power of 56.0 HP (41.2 kW).
How many gears does the Yamaha YZ450F have?
The 2027 Yamaha YZ450F has a Gearbox of 5-speed.
How much does the Yamaha YZ450F weigh?
The 2027 Yamaha YZ450F has a Dry weight of 99.3 kg (218.9 pounds).
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