Motocross Bikes
2023Yamaha YZ450FX
40 fields on record
The 2023 Yamaha YZ450FX is a competition-focused enduro bike designed for serious off-road riders tackling technical terrain and long-distance events. Powered by a liquid-cooled 449.7cc four-stroke single-cylinder engine with titanium valves and fuel injection, it delivers reliable performance across varied conditions. Known for its aggressive handling, lightweight construction, and versatile powerband, the YZ450FX excels in both cross-country racing and trail riding.
- Capacity
- 449.7 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 115.2 kg
- Seat height
- 955 mm
- Power
- 50.0 HP (36.8 kW)
What’s new for the 2023 Yamaha YZ450FX
vs the 2022| Spec | 2022 | 2023 |
|---|---|---|
| Compression | 12.8:1 | 13.0:1 |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for closed-course cross-country and enduro-style off-road riding rather than street use or commuting.
- Built for
- A high-revving, race-derived thumper that rewards an aggressive, momentum-focused riding style with sharp handling and light overall mass.
- Not ideal for
- Not a good fit for new riders, passengers, highway commuting, or anyone wanting plush comfort and long-range touring capability.
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
- 50.0 HP (36.8 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.4340 HP/kg (wet)
- Bore x stroke
- 97.0 x 60.9 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
- Wet multi-disc
Dimensions & weight
- Wheelbase
- 1481 mm
- Overall length
- 2174 mm
- Overall width
- 826 mm
- Overall height
- 1280 mm
- Seat height
- 955 mm
- Wet weight
- 115.2 kg
- Fuel capacity
- 8.30 litres
- Ground clearance
- 320 mm
- Dry weight
- Not on record - add it
Chassis & suspension
- Frame
- Aluminum Bilateral Beam
- Front suspension
- KYB® spring-type fork with speed sensitive damping; fully adjustable
- Rear suspension
- KYB® single shock; full adjustable
- Front wheel travel
- 310 mm
- Rear wheel travel
- 318 mm
- Rake (fork angle)
- 27.2°
- Trail
- 117 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
- 120/90-18
Other
- Color options
- Team Yamaha Blue
- Comments
- Power Tuner App. Adjustable Engine Mapping.
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 | 2016 | 2019 | 2022 | 2023 | 2024 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 450 cc | 450 cc | 450 cc | 450 cc | 450 cc | 450 cc |
| Seat height | 965 mm | 965 mm | 955 mm | 955 mm | 955 mm | 955 mm |
| Fuel capacity | 7.6 L | 8.3 L | 8.3 L | 8.3 L | 8.3 L | 7.9 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 YZ450FX?
The 2023 Yamaha YZ450FX has a Capacity of 449.7 ccm (27.44 cubic inches).
What engine power does the Yamaha YZ450FX have?
The 2023 Yamaha YZ450FX has a Power of 50.0 HP (36.8 kW).
How many gears does the Yamaha YZ450FX have?
The 2023 Yamaha YZ450FX has a Gearbox of 5-speed.
How much does the Yamaha YZ450FX weigh?
The 2023 Yamaha YZ450FX has a Wet weight of 115.2 kg (254.0 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
The 2023 Yamaha YZ450FX is an impressive off-road motorcycle that offers a powerful and responsive performance. With its advanced fuel-injected engine and lightweight design, the YZ450FX delivers exceptional handling and maneuverability on various terrains. The bike's innovative suspension system and durable chassis make it a top choice for riders who are looking for a high-performance off-road experience. Additionally, the YZ450FX features a comfortable and ergonomic design, making it a great option for long rides or challenging trails.
Overall, the 2023 Yamaha YZ450FX is a versatile and reliable off-road motorcycle that offers a thrilling riding experience. Its powerful engine, responsive handling, and durable construction make it a top choice for off-road enthusiasts. Whether you're navigating through tight trails or tackling steep hills, the YZ450FX delivers impressive performance and reliability. With its cutting-edge technology and high-quality components, the YZ450FX is a top contender in the off-road motorcycle market. If you're looking for a high-performance off-road bike that can handle any challenge, the 2023 Yamaha YZ450FX is definitely worth considering.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.