22 June. Monday 2026
Yamaha Bws 12INCH - 2011 Specifications and Reviews
The 2011 Yamaha BWs 12inch is a compact automatic scooter designed for urban commuters and novice riders seeking practical city mobility. Its lightweight steel frame and two-stroke engine deliver nimble handling and efficient fuel consumption, making it ideal for congested streets. Best known for its retro styling and dependable automatic transmission, this scooter excels in affordability and ease of use.
Engine and Transmission Specifications | |
| Transmission type,final drive | Belt |
| Gearbox | Automatic |
| Cooling system | Air |
| Lubrication system | Separate lubrication |
| Ignition | CDI |
| 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 | 2011 |
| Model | Yamaha BWs 12inch |
Brakes, suspension, Frame and 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 |
| Frame type | Steel |
| | |
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 length | 1,685 mm (66.3 inches) |
| Seat height | 768 mm (30.2 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.0393 HP/kg |
| Dry weight | 82.0 kg (180.8 pounds) |
| | |
Other specs | |
| Factory warranty | 6 Month (Limited Factory Warranty) |
| Light | Dual 30W Krypton Multi-reflector Headlights and 21/5W Brake light |
| Overall width | 1,085 mm (42.7 inches) |
| Overall height | 1,120 mm (44.1 inches) |
| Rear tyre | 25/10-12 |
| Front tyre | 25/8-12 |
| Rear Suspension | Swing Arm, 7.1” w/ 5-way Preload Adjustment |
| Front Suspension | Independent Double Wishbone, 6.3” w/ 5-way Preload Adjustment |
| Driveline | 2WD; Yamaha Ultramatic® V-Belt / Forward, Neut.,Rev. |
| Clutch | Engine Braking |
| Fuel control | Single Overhead Cams (SOHC) |
| Fuel system | Carburettor. Mikuni 33mm BSR |
| Bore x Stroke | 83.0 x 64.5 mm (3.3 x 2.5 inches) |
| Compression | 9.2:1 |
| Model | Yamaha Bruin 350 |
| Color options | Grey |
| Starter | Electric & kick |
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