Across 6 covered model years from 2007 to 2015, the Yamaha BWs 12inch motorcycle has supplied wet/running weights ranging from 180.8 lb (82 kg) and dry weights ranging from 165.3 lb (75 kg) to 183 lb (83 kg), depending on model year.
Yamaha BWs 12inch weight overview
This sits at the very light end of motorcycle mass, which is especially useful when the bike has to be moved around by hand or held on uneven ground.
Very Light Motorcycle
How heavy is the Yamaha BWs 12inch?
wet weight
Using a model-level wet weight comparison, the Yamaha BWs 12inch is lighter than about 90.3% 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 12inch weight & related specs
| Model years covered | 2007, 2008, 2009, 2011, 2012, 2015 |
|---|---|
| Wet / running weight | 180.8 lb (82 kg) |
| Dry weight | 165.3 lb (75 kg) to 183 lb (83 kg) |
| Engine displacement | 49 cc to 49.2 cc |
| 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 2007 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 | 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 | 336.1 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 12inch weight FAQ
What does the Yamaha BWs 12inch weigh ready to ride?
The supplied figures span 180.8 lb (82 kg) for wet/running weight and 165.3 lb (75 kg) to 183 lb (83 kg) for dry weight across the years in this page. Wet weight is the better guide to what you actually manage on the road.
Is the Yamaha BWs 12inch heavy compared with other Yamaha scooters?
It is on the lighter side in this dataset. Its representative wet weight sits around the 10th weight percentile among 129 Yamaha scooters, meaning most compatible models are heavier.
Does the Yamaha BWs 12inch 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 BWs 12inch fuel weigh?
The listed tank capacity is 1.4 US gal (5.3 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 8.7 lb (3.9 kg). That is an estimate for fuel mass, not an official Yamaha curb-weight calculation.
How heavy is the Yamaha BWs 12inch with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 360.8 lb (163.6 kg) using the representative wet/running figure. Gear and luggage would add more.
How heavy is the Yamaha BWs 12inch after filling the fuel 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 12inch torque-to-weight ratio?
The calculated torque-to-weight range is 1.45 lb-ft per 100 lb to 1.61 lb-ft per 100 lb. It is useful for comparing bikes with very different overall weights.
How large is the Yamaha BWs 12inch engine for its weight?
Engine displacement relative to bike weight is 0.27 cc per lb to 0.3 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
What are the lightest and heaviest Yamaha BWs 12inch years?
The usable year data ranges from 165.3 lb (75 kg) in 2007-2008 to 183 lb (83 kg) in 2012.
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.