Across 8 covered model years from 2017 to 2025, the Yamaha YZ125X motorcycle has supplied wet/running weights ranging from 206.1 lb (93.5 kg) to 212.1 lb (96.2 kg).
Yamaha YZ125X 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 YZ125X?
wet weight
Using a model-level wet weight comparison, the Yamaha YZ125X is lighter than about 77.2% 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 YZ125X weight & related specs
| Model years covered | 2017, 2018, 2020, 2021, 2022, 2023, 2024, 2025 |
|---|---|
| Wet / running weight | 206.1 lb (93.5 kg) to 212.1 lb (96.2 kg) |
| Engine displacement | 124 cc to 125 cc |
| Fuel capacity | 1.8 US gal (6.81 L) to 2.11 US gal (8 L) |
| Full-tank fuel weight (estimated) | 11.2 lb (5.1 kg) to 13.1 lb (6 kg) |
Weight changes by model year
The 2017 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 | 0.59 cc / lb to 0.6 cc / lb |
|---|---|
| Weight per 100 cc | 166.2 lb / 100 cc to 169.7 lb / 100 cc |
| Fuel weight as % of bike weight | 5.3% to 6.4% |
What the weight numbers tell you
Yamaha YZ125X weight FAQ
How much does the Yamaha YZ125X weigh?
The available wet/running figure is 206.1 lb (93.5 kg) to 212.1 lb (96.2 kg). This is more representative of the motorcycle you actually push, park and ride than a dry-only specification.
How does the Yamaha YZ125X weight compare with similar Yamahas?
Relatively light. On a model-level comparison, it is lighter than about 77.2% of 68 Yamaha enduro/off-road motorcycles with the same weight basis.
Are all Yamaha YZ125X model years the same weight?
There are year-to-year differences in the supplied data. The earliest covered year is used as the baseline, with later changed values shown separately above.
What does a full tank of gas weigh on the Yamaha YZ125X?
A full tank works out to about 11.2 lb (5.1 kg) to 13.1 lb (6 kg) from the listed 1.8 US gal (6.81 L) to 2.11 US gal (8 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Yamaha YZ125X 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 much of the Yamaha YZ125X total weight comes from fuel?
Fuel accounts for roughly 5.3% to 6.4% of the available motorcycle weight figure. On lighter bikes that share can be surprisingly noticeable.
What is the Yamaha YZ125X engine-size-to-weight ratio?
The model has about 0.59 cc per lb to 0.6 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
How far is the Yamaha YZ125X from the median Yamaha enduro/off-road motorcycle weight?
The representative wet weight is about 64.4 lb (29.2 kg) lighter than the median Yamaha enduro/off-road motorcycle weight of 273.4 lb (124 kg) in this dataset.
Is the Yamaha YZ125X 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.