Yamaha YZ 450FX
- Production years
- 2016–2027
- Brand
- Yamaha
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YAMAHA YZ450FX (2016-2017)
Selected year: 2027
Technical specifications
- Engine capacity
- 450 cm³
- Wet weight
- 112.9 kg
- Seat height
- 955 mm
Overview
The Yamaha YZ 450FX is an enduro bike produced from 2016 through 2027. The 2027 model has a 450.0 cm³ liquid-cooled, fuel-injected single-cylinder four-stroke engine and a wet weight of 112.9 kg; power and torque figures are not included here.
Its 955 mm seat height puts the rider high above the ground, while 330 mm of ground clearance helps when riding over obstacles. Fully adjustable KYB® suspension offers 300 mm of front-wheel travel and 305 mm at the rear, and electric starting gets the engine running without a kick lever.
Specifications
Engine
Engine
- Bore x stroke
- 97.0 x 60.8 mm
- Engine capacity
- 450 cm³
- Compression ratio
- 13.0:1
- Cooling system
- Liquid
- Engine type
- Single, four-stroke
- Fuel system
- Injection
- Ignition
- TCI
- Lubrication system
- Wet sump
- Starting
- Electric
- Valves per cylinder
- 4
Performance and transmission
Performance and transmission
- Clutch
- Wet multi-disc
- Final drive
- Chain
- Gearbox
- Manual 5-speed
- Transmission type
- Manual
Dimensions and weight
Dimensions and weight
- Fuel capacity
- 7.9 L
- Ground clearance
- 330 mm
- Overall height
- 1,265 mm
- Overall length
- 2,169 mm
- Overall width
- 825 mm
- Seat height
- 955 mm
- Wet weight
- 112.9 kg
- Wheelbase
- 1,471 mm
Chassis and suspension
Chassis and suspension
- Frame
- Aluminum Bilateral Beam
- Front suspension
- KYB® spring-type fork with speed sensitive damping; fully adjustable
- Front wheel travel
- 300 mm
- Rake
- 27.0°
- Rear suspension
- KYB® single shock; full adjustable
- Rear wheel travel
- 305 mm
- Trail
- 122 mm
Brakes and wheels
Brakes and wheels
- Front brakes
- Single disc. Hydraulic
- Front brakes diameter
- 270 mm
- Front tyre
- 80/100-21 Dunlop Geomax AT82
- Rear brakes
- Hydraulic disc, 220mm
- Rear brakes diameter
- 220 mm
- Rear tyre
- 120/90-18 Dunlop Geomax AT82
Model years
2019
Wet weight: 118.8 kg → 116.1 kg; Fuel capacity: 7.6 L → 8.3 L
2020
Power: 50 hp (37 kW) → 45 hp (34 kW)
2021
Wet weight: 116.1 kg → 115.2 kg; Seat height: 965 mm → 955 mm
2022
Power: 45 hp (34 kW) → 50 hp (37 kW)
2025
Engine capacity: 449.7 cm³ → 450 cm³; Wet weight: 115.2 kg → 113.9 kg; Fuel capacity: 8.3 L → 8 L
2027
Wet weight: 113.9 kg → 112.9 kg; Fuel capacity: 8 L → 7.9 L
| Specification | ||||||
|---|---|---|---|---|---|---|
| Engine capacity | 449.7 cm³ | 449.7 cm³ | 449.7 cm³ | 450 cm³ | 450 cm³ | 450 cm³ |
| Power | 50 hp (37 kW) | 50 hp (37 kW) | 50 hp (37 kW) | 50 hp (37 kW) | 50 hp (37 kW) | — |
| Wet weight | 115.2 kg | 115.2 kg | 115.2 kg | 113.9 kg | 113.9 kg | 112.9 kg |
| Seat height | 955 mm | 955 mm | 955 mm | 955 mm | 955 mm | 955 mm |
| Fuel capacity | 8.3 L | 8.3 L | 8.3 L | 8 L | 8 L | 7.9 L |
Pros and cons
Advantages
Adjustable long-travel suspension
Fully adjustable KYB® suspension with 300 mm front and 305 mm rear travel gives riders scope to tune the bike for changing terrain.
High ground clearance
The 330 mm clearance helps the bike pass over obstacles without the underside contacting them as readily.
Electric starting
Electric start avoids the need to kick-start the engine.
Things to consider
Tall seat
At 955 mm, the seat can make it difficult for shorter riders to put a foot down securely at a stop.
Chain final drive
The chain needs periodic cleaning and adjustment.
Rider fit
Rider fit calculator
Calculated in your browser
Don't know it? Leave this empty and we'll estimate it from your height.
Estimated from your height: 79 cm
How to measure
Stand barefoot with your back to a wall. Hold a book firmly between your legs, then measure from the floor to the top edge of the book.
Estimated ground reach
Ground reach may be difficult
This seat may feel tall. A lower seat or suspension setup could make stops easier.
Seat height
955 mm
Approx. loaded height
925 mm
Estimate assumes about 30 mm of suspension sag. Seat width, footwear, luggage and suspension settings can change real reach. Always sit on the motorcycle before buying.
Fuel range calculator
Enter your expected fuel consumption to estimate the distance on a full tank, with or without a fuel reserve.
Tank 7.9 L at 6 L/100 km
Lower consumption = longer range.
Estimated range
132 km
With 10% reserve
119 km
This is a planning estimate, not a measured result. Speed, route, weather, load and riding style can change real consumption.
FAQ
What is the engine capacity of the 2027 Yamaha YZ 450FX?
It has a 450.0 cm³, liquid-cooled, fuel-injected single-cylinder four-stroke engine.
How much does the 2027 Yamaha YZ 450FX weigh?
Its wet weight is 112.9 kg.
How tall is the seat on the 2027 Yamaha YZ 450FX?
The seat height is 955 mm.
What suspension does the 2027 Yamaha YZ 450FX have?
It has fully adjustable KYB® spring-type front forks and a fully adjustable KYB® single rear shock.
