Across 9 covered model years from 2015 to 2024, the Yamaha MT-125 motorcycle has supplied wet/running weights ranging from 304.2 lb (138 kg) to 313.1 lb (142 kg).
Yamaha MT-125 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 MT-125?
wet weight
Using a model-level wet weight comparison, the Yamaha MT-125 is lighter than about 77.5% of 69 Yamaha naked 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 MT-125 weight & related specs
| Model years covered | 2015, 2016, 2017, 2018, 2019, 2021, 2022, 2023, 2024 |
|---|---|
| Wet / running weight | 304.2 lb (138 kg) to 313.1 lb (142 kg) |
| Engine displacement | 124.7 cc |
| Power | 14.8 hp to 15 hp |
| Torque | 8.5 lb-ft (11.5 Nm) to 9.1 lb-ft (12.4 Nm) |
| Fuel capacity | 2.64 US gal (10 L) to 3.04 US gal (11.5 L) |
| Full-tank fuel weight (estimated) | 16.4 lb (7.5 kg) to 18.9 lb (8.6 kg) |
Weight changes by model year
The 2015 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
| Horsepower per 100 lb | 4.73 hp / 100 lb to 4.93 hp / 100 lb |
|---|---|
| Pounds per horsepower | 20.28 lb / hp to 21.15 lb / hp |
| Torque per 100 lb | 2.71 lb-ft / 100 lb to 3.01 lb-ft / 100 lb |
| Displacement per pound | 0.4 cc / lb to 0.41 cc / lb |
| Weight per 100 cc | 244 lb / 100 cc to 251 lb / 100 cc |
| Fuel weight as % of bike weight | 5.3% to 6.2% |
What the weight numbers tell you
Yamaha MT-125 weight FAQ
How heavy is the Yamaha MT-125 ready to ride?
Listed ready-to-ride weight is 304.2 lb (138 kg) to 313.1 lb (142 kg). The year-specific section above shows which years use each figure where the supplied value changes.
Is the Yamaha MT-125 heavy compared with other Yamaha naked bikes?
It is on the lighter side in this dataset. Its representative wet weight sits around the 22nd weight percentile among 69 Yamaha naked bikes, meaning most compatible models are heavier.
Does the Yamaha MT-125 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 MT-125 fuel weigh?
The listed tank capacity is 2.64 US gal (10 L) to 3.04 US gal (11.5 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 16.4 lb (7.5 kg) to 18.9 lb (8.6 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha MT-125 with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 488.6 lb (221.6 kg) using the representative wet/running figure. Gear and luggage would add more.
How much horsepower does the Yamaha MT-125 have per 100 lb?
Where compatible power and weight figures are available, it works out to 4.73 hp per 100 lb to 4.93 hp per 100 lb. That places it around the 15th percentile within the compatible Yamaha naked bike power-to-weight comparison.
How much torque does the Yamaha MT-125 have per 100 lb?
The calculated torque-to-weight range is 2.71 lb-ft per 100 lb to 3.01 lb-ft per 100 lb. It is useful for comparing bikes with very different overall weights.
What is the Yamaha MT-125 displacement per pound?
Engine displacement relative to bike weight is 0.4 cc per lb to 0.41 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
What is the Yamaha MT-125 weight difference versus the category median?
The model sits about 110.2 lb (50 kg) lighter than the compatible median Yamaha naked bike weight used on this page.
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.