Across 8 covered model years from 2016 to 2025, the Yamaha YZ450FX motorcycle has supplied wet/running weights ranging from 254 lb (115.2 kg) to 261.9 lb (118.8 kg).
Yamaha YZ450FX weight overview
This sits in a fairly light weight range. That does not guarantee easy handling, but it reduces the sheer mass you have to manage at a stop.
Light Motorcycle
How heavy is the Yamaha YZ450FX?
wet weight
Using a model-level wet weight comparison, the Yamaha YZ450FX is lighter than about 62.5% 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 YZ450FX weight & related specs
| Model years covered | 2016, 2017, 2018, 2019, 2022, 2023, 2024, 2025 |
|---|---|
| Wet / running weight | 254 lb (115.2 kg) to 261.9 lb (118.8 kg) |
| Engine displacement | 449.7 cc |
| Fuel capacity | 2 US gal (7.57 L) to 2.2 US gal (8.33 L) |
| Full-tank fuel weight (estimated) | 12.4 lb (5.6 kg) to 13.7 lb (6.2 kg) |
Weight changes by model year
The 2016 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 | 1.72 cc / lb to 1.77 cc / lb |
|---|---|
| Weight per 100 cc | 56.5 lb / 100 cc to 58.2 lb / 100 cc |
| Fuel weight as % of bike weight | 4.7% to 5.4% |
What the weight numbers tell you
Yamaha YZ450FX weight FAQ
How heavy is the Yamaha YZ450FX ready to ride?
Listed ready-to-ride weight is 254 lb (115.2 kg) to 261.9 lb (118.8 kg). The year-specific section above shows which years use each figure where the supplied value changes.
Is the Yamaha YZ450FX heavy compared with other Yamaha enduro/off-road motorcycles?
It sits fairly close to the middle of the category. Its representative wet weight is around the 38th percentile among 68 compatible Yamaha enduro/off-road motorcycles.
Does the Yamaha YZ450FX weight change by model year?
Not every covered year uses the same figure. The page groups identical values together and lists the later model years where the supplied weight specification changes.
How much does the Yamaha YZ450FX fuel weigh?
The listed tank capacity is 2 US gal (7.57 L) to 2.2 US gal (8.33 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 12.4 lb (5.6 kg) to 13.7 lb (6.2 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha YZ450FX with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 438.9 lb (199.1 kg) using the representative wet/running figure. Gear and luggage would add more.
What is the Yamaha YZ450FX displacement per pound?
Engine displacement relative to bike weight is 1.72 cc per lb to 1.77 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
What is the Yamaha YZ450FX weight difference versus the category median?
The model sits about 14.4 lb (6.6 kg) lighter than the compatible median Yamaha enduro/off-road motorcycle weight used on this page.
Will the Yamaha YZ450FX feel heavy at low speed?
Its low mass should make hand-moving and parking easier than on most full-size road motorcycles. Seat height and center of mass can still change how manageable it feels.
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.