Across 4 covered model years from 2021 to 2025, the Yamaha YZ450F Monster Energy motorcycle has supplied wet/running weights ranging from 240.1 lb (108.9 kg) to 244.9 lb (111.1 kg).
Yamaha YZ450F Monster Energy 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 YZ450F Monster Energy?
wet weight
Using a model-level wet weight comparison, the Yamaha YZ450F Monster Energy is heavier than about 86.7% of 15 Yamaha motocross bikes 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 YZ450F Monster Energy weight & related specs
| Model years covered | 2021, 2022, 2023, 2025 |
|---|---|
| Wet / running weight | 240.1 lb (108.9 kg) to 244.9 lb (111.1 kg) |
| Engine displacement | 449 cc |
| Fuel capacity | 1.6 US gal (6.06 L) |
| Full-tank fuel weight (estimated) | 10 lb (4.5 kg) |
Weight changes by model year
The 2021 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 | 1.83 cc / lb to 1.87 cc / lb |
|---|---|
| Weight per 100 cc | 53.5 lb / 100 cc to 54.6 lb / 100 cc |
| Fuel weight as % of bike weight | 4.1% to 4.1% |
What the weight numbers tell you
Yamaha YZ450F Monster Energy weight FAQ
How heavy is the Yamaha YZ450F Monster Energy ready to ride?
Listed ready-to-ride weight is 240.1 lb (108.9 kg) to 244.9 lb (111.1 kg). The year-specific section above shows which years use each figure where the supplied value changes.
Is the Yamaha YZ450F Monster Energy heavy compared with other Yamaha motocross bikes?
Relatively speaking, it is on the heavier side. The model sits near the 87th weight percentile in its Yamaha category, so it is heavier than most of the compatible comparison set.
Does the Yamaha YZ450F Monster Energy 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 YZ450F Monster Energy fuel weigh?
The listed tank capacity is 1.6 US gal (6.06 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 10 lb (4.5 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha YZ450F Monster Energy with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 424.9 lb (192.7 kg) using the representative wet/running figure. Gear and luggage would add more.
How many cc does the Yamaha YZ450F Monster Energy have per pound?
Engine displacement relative to bike weight is 1.83 cc per lb to 1.87 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
How does the Yamaha YZ450F Monster Energy compare with the median Yamaha motocross bike weight?
The model sits about 13.9 lb (6.3 kg) heavier than the compatible median Yamaha motocross bike weight used on this page.
Will the Yamaha YZ450F Monster Energy 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.