22 June. Monday 2026
Yamaha Bws 12INCH - 2012 Specifications and Reviews
The 2012 Yamaha BWs 12inch is a compact urban scooter designed for new riders and city commuters seeking practical, economical transportation. Powered by a lightweight two-stroke 49cc engine, it delivers modest performance with excellent fuel efficiency and easy handling. Best known for its retro styling and reliability, this automatic scooter excels in congested urban environments where maneuverability matters most.
Engine and Transmission Specifications | |
| Transmission type,final drive | Belt |
| Gearbox | Automatic |
| Cooling system | Air |
| Lubrication system | Separate lubrication |
| Ignition | CDI |
| Fuel system | Carburettor |
| Bore x stroke | 40.0 x 39.2 mm (1.6 x 1.5 inches) |
| Compression | 7.2:1 |
| Torque | 3.60 Nm (0.4 kgf-m or 2.7 ft.lbs) @ 6000 |
| Power | 3.22 |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 49.20 ccm (3.00 cubic inches) |
| | |
| Category | Scooter |
| Year | 2012 |
| Model | Yamaha BWs 12inch |
Brakes, suspension, Frame and wheels | |
| Wheels | Alloy wheels |
| Rear brakes diameter | 110 mm (4.3 inches) |
| Rear brakes | Expanding brake (drum brake) |
| Front brakes diameter | 180 mm (7.1 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 130/70-12 |
| Front tyre dimensions | 120/70-12 |
| Rear suspension travel | 70 mm (2.8 inches) |
| Rear suspension | Unit swing |
| Front suspension travel | 70 mm (2.8 inches) |
| Front suspension | Telescopic fork |
| | |
Physical measures and capacities | |
| Fuel capacity | 5.30 litres (1.40 gallons) |
| Wheelbase | 1,172 mm (46.1 inches) |
| Ground clearance | 124 mm (4.9 inches) |
| Overall width | 690 mm (27.2 inches) |
| Overall length | 1,685 mm (66.3 inches) |
| Overall height | 1,052 mm (41.4 inches) |
| Seat height | 768 mm (30.2 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.0388 HP/kg |
| Dry weight | 83.0 kg (183.0 pounds) |
Other specs | |
| Factory warranty | 6 Month (Limited Factory Warranty) |
| Light | Dual 30W Krypton multireflector headlights and 21/5W brakelight |
| Instruments | Speedometer, odometer and fuel gauge |
| Wheelbase | 1,229 mm (48.4 inches) |
| Weight incl. oil, gas, etc | 284.9 kg (628.0 pounds) |
| Rear tyre | 25/10-12 |
| Front tyre | 25/8-12 |
| Rear wheel travel | 193 mm (7.6 inches) |
| Rear Suspension | Independent double wishbone |
| Front wheel travel | 147 mm (5.8 inches) |
| Front Suspension | Independent double wishbone |
| Driveline | Yamaha On-Command pushbutton; 3-way locking differential; 2WD, 4WD, locked 4WD; shaft drive |
| Fuel control | Single Overhead Cams (SOHC) |
| Bore x Stroke | 83.0 x 71.5 mm (3.3 x 2.8 inches) |
| Compression | 8.6:1 |
| Model | Yamaha Big Bear 400 4x4 IRS |
| Color options | White |
| Seat | Dual |
| Starter | Electric & kick |
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