Across 4 covered model years from 2021 to 2024, the Yamaha R125 motorcycle has a listed wet/running weight of 317.5 lb (144 kg).
Yamaha R125 weight overview
The weight is relatively manageable, so the bike should demand less effort than a heavyweight machine when backing up, parking or making slow-speed corrections.
Light Motorcycle
How heavy is the Yamaha R125?
wet weight
Using a model-level wet weight comparison, the Yamaha R125 is lighter than about 71.7% of 83 Yamaha sport 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 R125 weight & related specs
| Model years covered | 2021, 2022, 2023, 2024 |
|---|---|
| Wet / running weight | 317.5 lb (144 kg) |
| Engine displacement | 124.7 cc to 125 cc |
| Torque | 8.5 lb-ft (11.5 Nm) |
| Fuel capacity | 2.91 US gal (11 L) to 3.04 US gal (11.5 L) |
| Full-tank fuel weight (estimated) | 18.1 lb (8.2 kg) to 18.9 lb (8.6 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
| Torque per 100 lb | 2.67 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 0.39 cc / lb |
| Weight per 100 cc | 254 lb / 100 cc to 254.6 lb / 100 cc |
| Fuel weight as % of bike weight | 5.7% to 5.9% |
What the weight numbers tell you
Yamaha R125 weight FAQ
What is the Yamaha R125 wet weight?
The supplied wet/running weight is 317.5 lb (144 kg) across the model years covered here. That figure is the most useful available number for real-world handling because operating fluids and fuel are included.
Is the Yamaha R125 lighter or heavier than other Yamaha sport bikes?
It is comparatively light for this Yamaha category. The model lands near the 28th percentile for weight in the compatible dataset.
Which Yamaha R125 years have different weight specs?
No clear weight change appears in the usable model-year data. Other specifications may still differ by year.
How much does a full tank add to the Yamaha R125?
Based on the supplied 2.91 US gal (11 L) to 3.04 US gal (11.5 L) tank capacity, the gasoline itself weighs about 18.1 lb (8.2 kg) to 18.9 lb (8.6 kg) when full. On models with a wet/running weight, that fuel mass is already included in the listed ready-to-ride figure.
What is the combined Yamaha R125 and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 497.5 lb (225.6 kg) before riding gear, luggage or a passenger.
How much torque does the Yamaha R125 have per 100 lb?
Where compatible torque and weight figures are available, the model works out to 2.67 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
What is the Yamaha R125 displacement per pound?
The available figures work out to 0.39 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
What is the Yamaha R125 weight difference versus the category median?
Compared with the median Yamaha sport bike weight of 414 lb (187.8 kg), the model is roughly 96.6 lb (43.8 kg) lighter.
Where will I notice the Yamaha R125 weight most?
Expect the weight to matter more off the throttle than at speed: garage movement, uneven footing and parking angle are the practical situations to think about.
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.