Across the 2006, 2013 and 2014 model years, the Yamaha BWs 12 inch motorcycle has supplied wet/running weights ranging from 183 lb (83 kg) and dry weights ranging from 165.3 lb (75 kg) to 183 lb (83 kg), depending on model year.
Yamaha BWs 12 inch weight overview
Its low overall mass should be most noticeable off the throttle: moving it by hand, backing out of a parking space and managing stop-start riding should take less effort than on a heavy road bike.
Very Light Motorcycle
How heavy is the Yamaha BWs 12 inch?
wet weight
Using a model-level wet weight comparison, the Yamaha BWs 12 inch is lighter than about 86.4% of 129 Yamaha scooters with compatible weight data.
Dry vs 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 BWs 12 inch weight & related specs
| Model years covered | 2006, 2013, 2014 |
|---|---|
| Wet / running weight | 183 lb (83 kg) |
| Dry weight | 165.3 lb (75 kg) to 183 lb (83 kg) |
| Engine displacement | 49 cc to 49.2 cc |
| Power | 3.2 hp |
| Torque | 2.7 lb-ft (3.6 Nm) |
| Fuel capacity | 1.4 US gal (5.3 L) |
| Full-tank fuel weight (estimated) | 8.7 lb (3.9 kg) |
Weight changes by model year
The 2006 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 | 1.94 hp / 100 lb |
|---|---|
| Pounds per horsepower | 51.67 lb / hp |
| Torque per 100 lb | 1.45 lb-ft / 100 lb to 1.61 lb-ft / 100 lb |
| Displacement per pound | 0.27 cc / lb to 0.3 cc / lb |
| Weight per 100 cc | 337.4 lb / 100 cc to 371.9 lb / 100 cc |
| Fuel weight as % of bike weight | 4.8% to 5.3% |
| Weight with full tank | 174.1 lb (78.9 kg) to 191.7 lb (86.9 kg) |
What the weight numbers tell you
Yamaha BWs 12 inch weight FAQ
What is the Yamaha BWs 12 inch dry and wet weight?
Across the covered 2006, 2013, 2014 years, listed wet/running weight is 183 lb (83 kg) and listed dry weight is 165.3 lb (75 kg) to 183 lb (83 kg). Check the year-change section because the exact figure can vary by model year.
Is the Yamaha BWs 12 inch lighter or heavier than other Yamaha scooters?
It is comparatively light for this Yamaha category. The model lands near the 14th percentile for weight in the compatible dataset.
Which Yamaha BWs 12 inch years have different weight specs?
The supplied data shows different weight figures across the 2006, 2013, 2014 model years. Use the year-specific changes section above for the exact value attached to each changed year.
How much does a full tank add to the Yamaha BWs 12 inch?
Based on the supplied 1.4 US gal (5.3 L) tank capacity, the gasoline itself weighs about 8.7 lb (3.9 kg) when full. This helps explain part of the difference between dry and ready-to-ride mass.
What is the combined Yamaha BWs 12 inch and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 363 lb (164.6 kg) before riding gear, luggage or a passenger.
What is the Yamaha BWs 12 inch power-to-weight ratio?
Available model-year data produces 1.94 hp per 100 lb. It shows engine output relative to motorcycle mass rather than just quoting peak horsepower. That places it around the 22nd percentile within the compatible Yamaha scooter power-to-weight comparison.
How much heavier is the Yamaha BWs 12 inch with a full tank?
The page calculates about 174.1 lb (78.9 kg) to 191.7 lb (86.9 kg) with a full tank by adding the listed fuel mass to the dry figure. Treat this as a practical estimate, not an official Yamaha curb-weight number.
What is the Yamaha BWs 12 inch torque-to-weight ratio?
Where compatible torque and weight figures are available, the model works out to 1.45 lb-ft per 100 lb to 1.61 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 BWs 12 inch engine for its weight?
The available figures work out to 0.27 cc per lb to 0.3 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
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.