Across 11 covered model years from 2015 to 2025, the Yamaha YZF-R3 motorcycle has supplied wet/running weights ranging from 368 lb (166.9 kg) to 375 lb (170.1 kg).
Yamaha YZF-R3 weight overview
This is neither unusually light nor extremely heavy. For most riders the practical weight question is more about seat height, center of mass and low-speed balance than the scale number alone.
Middleweight Motorcycle
How heavy is the Yamaha YZF-R3?
wet weight
Using a model-level wet weight comparison, the Yamaha YZF-R3 is lighter than about 68.1% of 83 Yamaha sport 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 YZF-R3 weight & related specs
| Model years covered | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
|---|---|
| Wet / running weight | 368 lb (166.9 kg) to 375 lb (170.1 kg) |
| Engine displacement | 321 cc |
| Power | 42 hp |
| Torque | 21.8 lb-ft (29.6 Nm) |
| Fuel capacity | 3.7 US gal (14 L) |
| Full-tank fuel weight (estimated) | 23 lb (10.4 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 | 11.2 hp / 100 lb to 11.41 hp / 100 lb |
|---|---|
| Pounds per horsepower | 8.76 lb / hp to 8.93 lb / hp |
| Torque per 100 lb | 5.82 lb-ft / 100 lb to 5.93 lb-ft / 100 lb |
| Displacement per pound | 0.86 cc / lb to 0.87 cc / lb |
| Weight per 100 cc | 114.6 lb / 100 cc to 116.8 lb / 100 cc |
| Fuel weight as % of bike weight | 6.1% to 6.2% |
What the weight numbers tell you
Yamaha YZF-R3 weight FAQ
How heavy is the Yamaha YZF-R3 ready to ride?
Listed ready-to-ride weight is 368 lb (166.9 kg) to 375 lb (170.1 kg). The year-specific section above shows which years use each figure where the supplied value changes.
Is the Yamaha YZF-R3 heavy compared with other Yamaha sport bikes?
It is on the lighter side in this dataset. Its representative wet weight sits around the 32nd weight percentile among 83 Yamaha sport bikes, meaning most compatible models are heavier.
Does the Yamaha YZF-R3 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 YZF-R3 fuel weigh?
The listed tank capacity is 3.7 US gal (14 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 23 lb (10.4 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha YZF-R3 with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 548 lb (248.5 kg) using the representative wet/running figure. Gear and luggage would add more.
How much horsepower does the Yamaha YZF-R3 have per 100 lb?
Where compatible power and weight figures are available, it works out to 11.2 hp per 100 lb to 11.41 hp per 100 lb. That places it around the 36th percentile within the compatible Yamaha sport power-to-weight comparison.
How much of the Yamaha YZF-R3 total weight comes from fuel?
Based on the available weight basis, a full tank of gasoline represents about 6.1% to 6.2% of the motorcycle’s weight.
How does Yamaha YZF-R3 torque compare with its weight?
The calculated torque-to-weight range is 5.82 lb-ft per 100 lb to 5.93 lb-ft per 100 lb. It is useful for comparing bikes with very different overall weights.
What is the Yamaha YZF-R3 engine-size-to-weight ratio?
Engine displacement relative to bike weight is 0.86 cc per lb to 0.87 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
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.