Across 6 covered model years from 2015 to 2021, the Yamaha YZF-R25 motorcycle has supplied wet/running weights ranging from 317.5 lb (144 kg) to 368.2 lb (167 kg).
Yamaha YZF-R25 weight overview
This is middleweight territory: substantial enough to feel planted, but still well short of heavyweight touring and large-cruiser mass.
Middleweight Motorcycle
How heavy is the Yamaha YZF-R25?
wet weight
Using a model-level wet weight comparison, the Yamaha YZF-R25 is lighter than about 66.9% 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-R25 weight & related specs
| Model years covered | 2015, 2017, 2018, 2019, 2020, 2021 |
|---|---|
| Wet / running weight | 317.5 lb (144 kg) to 368.2 lb (167 kg) |
| Engine displacement | 249 cc to 250 cc |
| Power | 35 hp |
| Torque | 16.7 lb-ft (22.6 Nm) to 17.4 lb-ft (23.6 Nm) |
| Fuel capacity | 3.7 US gal (14 L) to 3.78 US gal (14.3 L) |
| Full-tank fuel weight (estimated) | 23 lb (10.4 kg) to 23.5 lb (10.7 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 | 9.51 hp / 100 lb |
|---|---|
| Pounds per horsepower | 10.52 lb / hp |
| Torque per 100 lb | 4.55 lb-ft / 100 lb to 5.25 lb-ft / 100 lb |
| Displacement per pound | 0.68 cc / lb to 0.78 cc / lb |
| Weight per 100 cc | 127.5 lb / 100 cc to 147.9 lb / 100 cc |
| Fuel weight as % of bike weight | 6.2% to 7.2% |
What the weight numbers tell you
Yamaha YZF-R25 weight FAQ
How much does the Yamaha YZF-R25 weigh?
The available wet/running figure is 317.5 lb (144 kg) to 368.2 lb (167 kg). This is more representative of the motorcycle you actually push, park and ride than a dry-only specification.
How does the Yamaha YZF-R25 weight compare with similar Yamahas?
Relatively light. On a model-level comparison, it is lighter than about 66.9% of 83 Yamaha sport bikes with the same weight basis.
Are all Yamaha YZF-R25 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 YZF-R25?
A full tank works out to about 23 lb (10.4 kg) to 23.5 lb (10.7 kg) from the listed 3.7 US gal (14 L) to 3.78 US gal (14.3 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Yamaha YZF-R25 weigh with a 180 lb rider?
The approximate combined total is 548.2 lb (248.6 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
Is the Yamaha YZF-R25 strong for its weight?
The calculated range is 9.51 hp per 100 lb. This ratio is usually more informative for acceleration comparisons than horsepower alone. That places it around the 23rd percentile within the compatible Yamaha sport power-to-weight comparison.
How much of the Yamaha YZF-R25 total weight comes from fuel?
Fuel accounts for roughly 6.2% to 7.2% of the available motorcycle weight figure. On lighter bikes that share can be surprisingly noticeable.
How does Yamaha YZF-R25 torque compare with its weight?
Available data gives 4.55 lb-ft per 100 lb to 5.25 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.
What is the Yamaha YZF-R25 engine-size-to-weight ratio?
The model has about 0.68 cc per lb to 0.78 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.
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.