Across the 2022 and 2023 model years, the Yamaha R15M motorcycle has a listed wet/running weight of 313.1 lb (142 kg).
Yamaha R15M 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 R15M?
wet weight
Using a model-level wet weight comparison, the Yamaha R15M is lighter than about 76.5% 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 R15M weight & related specs
| Model years covered | 2022, 2023 |
|---|---|
| Wet / running weight | 313.1 lb (142 kg) |
| Engine displacement | 155 cc |
| Power | 18.4 hp |
| Torque | 10.5 lb-ft (14.2 Nm) |
| Fuel capacity | 2.91 US gal (11 L) |
| Full-tank fuel weight (estimated) | 18.1 lb (8.2 kg) |
Weight changes by model year
Useful weight calculations
| Horsepower per 100 lb | 5.88 hp / 100 lb |
|---|---|
| Pounds per horsepower | 17.01 lb / hp |
| Torque per 100 lb | 3.35 lb-ft / 100 lb |
| Displacement per pound | 0.5 cc / lb |
| Weight per 100 cc | 202 lb / 100 cc |
| Fuel weight as % of bike weight | 5.8% |
What the weight numbers tell you
Yamaha R15M weight FAQ
What is the Yamaha R15M wet weight?
The supplied wet/running weight is 313.1 lb (142 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 R15M lighter or heavier than other Yamaha sport bikes?
It is comparatively light for this Yamaha category. The model lands near the 23rd percentile for weight in the compatible dataset.
Which Yamaha R15M 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 R15M?
Based on the supplied 2.91 US gal (11 L) tank capacity, the gasoline itself weighs about 18.1 lb (8.2 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 R15M and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 493.1 lb (223.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha R15M power-to-weight ratio?
Available model-year data produces 5.88 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 15th percentile within the compatible Yamaha sport power-to-weight comparison.
What is the Yamaha R15M torque-to-weight ratio?
Where compatible torque and weight figures are available, the model works out to 3.35 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
How large is the Yamaha R15M engine for its weight?
The available figures work out to 0.5 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
Is the Yamaha R15M above or below the typical Yamaha sport bike weight?
Compared with the median Yamaha sport bike weight of 414 lb (187.8 kg), the model is roughly 101 lb (45.8 kg) lighter.
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.