The Yamaha BWS 125 motorcycle specifications include a 125 cc (7.63 cu in) engine, an automatic gearbox, and a listed weight of 119 kg (262.4 lb).
Key specifications
The 2018 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the Yamaha BWS 125 compares
This compares the motorcycle with all Yamaha models in this specifications database. The blue marker is this model and the grey line is the Yamaha database average.
About 77% lower than the Yamaha database average. Around the 25th percentile across Yamaha models.
About 36% lighter than the Yamaha database average. Around the 20th percentile across Yamaha models.
Very close to the Yamaha database average. Around the 39th percentile across Yamaha models.
About 50% smaller than the Yamaha database average. Around the 16th percentile across Yamaha models.
Yamaha database percentile rankings
Percentiles show where this motorcycle sits across the Yamaha specifications database. They are descriptive database rankings, not performance ratings.
125 cc — larger displacement than about 25% of Yamaha models.
119 kg — heavier than about 20% of Yamaha models, or lighter than about 80%.
780 mm — taller than about 39% of Yamaha models.
6.5 L — larger than about 16% of Yamaha fuel tanks in this database.
Dimensions compared with Yamaha average
Each measurement is compared with the average value across Yamaha models where that dimension is available.
1,910
2,082
8% below average.
765
823
7% below average.
1,125
1,172
4% below average.
1,305
1,416
8% below average.
780
793
Close to average.
125
181
31% below average.
Mechanical overview
Additional useful specifications
| Front tire size | 120/70-12 |
|---|---|
| Rear tire size | 130/70-12 |
| Front tire width | 120 mm |
| Front tire aspect ratio | 70% |
| Front rim diameter | 12 in |
| Rear tire width | 130 mm |
| Rear tire aspect ratio | 70% |
| Rear rim diameter | 12 in |
| Bore/stroke ratio | 0.91:1 (Undersquare) |
Model information
| Category | Scooter |
|---|
Engine specifications
| Engine type | Single cylinder, four-stroke |
|---|---|
| Displacement | 125 cc (7.63 cu in) |
| Torque | 10.0 Nm (1.0 kgf-m or 7.4 ft.lbs) @ 7,000 rpm |
| Bore × stroke | 52.4 x 57.9 mm (2.1 x 2.3 inches) |
| Compression ratio | 10.0:1 |
| Valves per cylinder | 4 |
| Cooling system | Air |
| Fuel system | Injection. Mikuni 24mm throttle body fuel injection |
| Fuel control | Single Overhead Cams (SOHC) |
| Ignition | TCI Electric Start |
| Starter | Electric |
| Lubrication | Wet Sump |
Transmission and drivetrain
| Gearbox | Automatic |
|---|---|
| Final drive | Belt (final drive) |
Chassis and suspension
| Front suspension | Telescopic fork |
|---|---|
| Rear suspension | Adjustable dual shock unit swingarm |
| Front wheel travel | 78 mm (3.1 inches) |
| Rear wheel travel | 80 mm (3.1 inches) |
Brakes, wheels and tires
| Front brakes | Single disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 120/70-12 |
| Rear tire | 130/70-12 |
Dimensions and weight
| Wet weight | 119 kg (262.4 lb) |
|---|---|
| Seat height | 780 mm (30.7 inches) |
| Overall length | 1,910 mm (75.2 inches) |
| Overall width | 765 mm (30.1 inches) |
| Overall height | 1,125 mm (44.3 inches) |
| Wheelbase | 1,305 mm (51.4 inches) |
| Ground clearance | 125 mm (4.9 inches) |
Fuel and emissions
| Fuel capacity | 6.50 L (1.72 US gal) |
|---|
Other specifications
| Color options | Silver, red |
|---|
Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from Yamaha models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official Yamaha information before relying on them. Visit the official Yamaha website.