Comparison of Yamaha BWs 12inch 2008 and Yamaha BWs Naked 2006 [S]ave
| Attribute |  Yamaha BWs 12inch 2008 × |  Yamaha BWs Naked 2006 × |
|---|---|---|
| General | ||
| Production from (year) | 2008 | 2006 |
| Make | Yamaha | Yamaha |
| Model | Yamaha BWs 12inch | Yamaha BWs Naked |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Displacement (cm³) | 49.2 | 49 |
| Power (kw) | 2.3 | 2.3 |
| Cooling system | Air | Air |
| Transmission type,final drive | - | Chain |
| Torque (Nm) | 3.6 | 3.6 |
| Bore (mm) | 40 | 67 |
| Stroke (mm) | 39.2 | 55.7 |
| Gearbox | - | 5-speed |
| Ignition | CDI | Electronic (C.D.I.) |
| Clutch | - | Automatic centrifugal |
| Lubrication system | Wet sump | Seperate lubrification |
| Compression | 7.2:1 | 7.2:1 |
| Chassis | ||
| Front suspension | Hydraulic and telescopic fork | Hydraulic and telescopic fork |
| Rear suspension | Hydraulic unit swing | Hydraulic unit swing |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 110 | 110 |
| Frame type | - | Front suspension system |
| Front tyre | 120/70-12 | 120/90-10 |
| Rear tyre | 130/70-12 | 150/80-10 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Dimensions | ||
| Wheelbase (mm) | 1,172 | 1,172 |
| Dry weight (kg) | 75 | 75 |
| Power/weight ratio | 0.0307 | 0.0307 |
| Overall height (mm) | 1,052 | 1,051 |
| Overall length (mm) | 1,685 | 1,685 |
| Overall width (mm) | 690 | 754 |
| Seat height (mm) | 768 | 768 |
| Ground clearance (mm) | 124 | 124 |
| Performance | ||
| Fuel capacity (l) | 5.3 | 5.3 |
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