Across the 2020 and 2021 model years, the Yamaha YZ450 FX motorcycle has supplied wet/running weights ranging from 254 lb (115.2 kg) to 256 lb (116.1 kg).
Yamaha YZ450 FX weight overview
The weight is relatively manageable, so the bike should demand less effort than a heavyweight machine when backing up, parking or making slow-speed corrections.
Light Motorcycle
How heavy is the Yamaha YZ450 FX?
wet weight
Using a model-level wet weight comparison, the Yamaha YZ450 FX is lighter than about 65.4% of 68 Yamaha enduro/off-road motorcycles with compatible weight data.
Ready-to-ride weight range
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Yamaha YZ450 FX weight & related specs
| Model years covered | 2020, 2021 |
|---|---|
| Wet / running weight | 254 lb (115.2 kg) to 256 lb (116.1 kg) |
| Engine displacement | 449.7 cc |
| Fuel capacity | 2.2 US gal (8.33 L) |
| Full-tank fuel weight (estimated) | 13.7 lb (6.2 kg) |
Weight changes by model year
The 2020 model is used as the baseline where data is available. Only later supplied values that differ are shown below. A year pill does not mean every individual weight field was supplied for that year.
Useful weight calculations
| Displacement per pound | 1.76 cc / lb to 1.77 cc / lb |
|---|---|
| Weight per 100 cc | 56.5 lb / 100 cc to 56.9 lb / 100 cc |
| Fuel weight as % of bike weight | 5.3% to 5.4% |
What the weight numbers tell you
Yamaha YZ450 FX weight FAQ
What is the Yamaha YZ450 FX wet weight?
The supplied wet/running weight is 254 lb (115.2 kg) to 256 lb (116.1 kg) across the model years covered here. That figure is the most useful available number for real-world handling because operating fluids and fuel are included.
Is the Yamaha YZ450 FX lighter or heavier than other Yamaha enduro/off-road motorcycles?
It is comparatively light for this Yamaha category. The model lands near the 35th percentile for weight in the compatible dataset.
Which Yamaha YZ450 FX years have different weight specs?
The supplied data shows different weight figures across the 2020-2021 model years. Use the year-specific changes section above for the exact value attached to each changed year.
How much does a full tank add to the Yamaha YZ450 FX?
Based on the supplied 2.2 US gal (8.33 L) tank capacity, the gasoline itself weighs about 13.7 lb (6.2 kg) when full. On models with a wet/running weight, that fuel mass is already included in the listed ready-to-ride figure.
What is the combined Yamaha YZ450 FX and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 435 lb (197.3 kg) before riding gear, luggage or a passenger.
What is the Yamaha YZ450 FX displacement per pound?
The available figures work out to 1.76 cc per lb to 1.77 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
How much does Yamaha YZ450 FX weight vary by year?
Among years with usable comparable figures, 2021 is the lightest at 254 lb (115.2 kg), while 2020 is the heaviest at 256 lb (116.1 kg).
What is the Yamaha YZ450 FX weight difference versus the category median?
Compared with the median Yamaha enduro/off-road motorcycle weight of 273.4 lb (124 kg), the model is roughly 18.4 lb (8.3 kg) lighter.
Where will I notice the Yamaha YZ450 FX weight most?
The weight itself is unlikely to be the main difficulty. Rider reach, steering lock and where the mass sits may matter more at walking pace.
Motorcycle specifications can vary by model year, market, equipment and the exact dry/curb-weight definition. Calculated fuel-weight and ratio figures on this page are estimates derived from the supplied specifications. Confirm critical figures in the owner’s manual or on the official Yamaha Motorsports website.