Across the 2022, 2023 and 2025 model years, the Yamaha YZ125 Monster Energy motorcycle has a listed wet/running weight of 209 lb (94.8 kg).
Yamaha YZ125 Monster Energy weight overview
This is a genuinely light bike. That usually makes parking, pushing it around a garage and catching small low-speed balance errors easier than on larger motorcycles.
Very Light Motorcycle
How heavy is the Yamaha YZ125 Monster Energy?
wet weight
Using a model-level wet weight comparison, the Yamaha YZ125 Monster Energy is lighter than about 76.7% of 15 Yamaha motocross bikes with compatible weight data.
Ready-to-ride weight
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Yamaha YZ125 Monster Energy weight & related specs
| Model years covered | 2022, 2023, 2025 |
|---|---|
| Wet / running weight | 209 lb (94.8 kg) |
| Engine displacement | 125 cc |
| Fuel capacity | 1.8 US gal (6.81 L) |
| Full-tank fuel weight (estimated) | 11.2 lb (5.1 kg) |
Weight changes by model year
Useful weight calculations
| Displacement per pound | 0.6 cc / lb |
|---|---|
| Weight per 100 cc | 167.2 lb / 100 cc |
| Fuel weight as % of bike weight | 5.4% |
What the weight numbers tell you
Yamaha YZ125 Monster Energy weight FAQ
How much does the Yamaha YZ125 Monster Energy weigh?
The available wet/running figure is 209 lb (94.8 kg). This is more representative of the motorcycle you actually push, park and ride than a dry-only specification.
How does the Yamaha YZ125 Monster Energy weight compare with similar Yamahas?
Relatively light. On a model-level comparison, it is lighter than about 76.7% of 15 Yamaha motocross bikes with the same weight basis.
Are all Yamaha YZ125 Monster Energy model years the same weight?
The supplied comparable weight values do not show a meaningful change across the 2022, 2023, 2025 years covered here.
What does a full tank of gas weigh on the Yamaha YZ125 Monster Energy?
A full tank works out to about 11.2 lb (5.1 kg) from the listed 1.8 US gal (6.81 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Yamaha YZ125 Monster Energy weigh with a 180 lb rider?
The approximate combined total is 389 lb (176.4 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
How large is the Yamaha YZ125 Monster Energy engine for its weight?
The model has about 0.6 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
Is the Yamaha YZ125 Monster Energy above or below the typical Yamaha motocross bike weight?
The representative wet weight is about 22 lb (10 kg) lighter than the median Yamaha motocross bike weight of 231 lb (104.8 kg) in this dataset.
Is the Yamaha YZ125 Monster Energy easy to move around by hand?
By scale weight it is light, so backing up, garage movement and slow-speed corrections should require less effort than on heavier bikes. Geometry still matters.
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.