| Attribute | Yamaha BWs 2011 × | Beta Minicross R 12 2010 × |
|---|---|---|
| General | ||
| Production from (year) | 2011 | 2010 |
| Make | Yamaha | Beta |
| Model | Yamaha BWs | Beta Minicross R 12 |
| Category | Scooter | Minibike, cross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor. Dell´Orto SHA 14 - 12L |
| Displacement (cm³) | 49.2 | 49 |
| Power (kw) | 2.4 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Chain |
| Torque (Nm) | 3.6 | - |
| Bore (mm) | 40 | 39.5 |
| Stroke (mm) | 39.2 | 40 |
| Gearbox | Automatic | Automatic |
| Fuel control | Single Overhead Cams (SOHC) | - |
| Ignition | CDI | - |
| Clutch | - | Wet automatic centrifugal type |
| Lubrication system | Separate lubrication | - |
| Compression | 7.2:1 | 12.5:1 |
| Chassis | ||
| Front suspension | Telescopic fork | Mechanical fork with ø30 mm shaft |
| Rear suspension | Unit swing | - |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 110 | 90 |
| Frame type | Steel | - |
| Front tyre | 120/90-10 | 2.5-15 |
| Rear tyre | 150/80-10 | 3-12 |
| Front wheel travel (mm) | 70 | - |
| Rear wheel travel (mm) | 70 | - |
| Other | ||
| Starter | Electric & kick | Kick |
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,172 | 1,100 |
| Kerb weight (kg) | 82 | 51 |
| Dry weight (kg) | - | 46 |
| Overall height (mm) | 1,049 | 990 |
| Overall length (mm) | 1,685 | 1,580 |
| Seat height (mm) | 768 | 740 |
| Ground clearance (mm) | 124 | 280 |
| Performance | ||
| Reserve fuel capacity (l) | - | 0.3 |
| Fuel capacity (l) | 5.3 | 2 |