| Attribute | Derbi Atlantis Bullet 2t × | Yamaha BWs 12inch 2011 × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2011 |
| Make | Derbi | Yamaha |
| Model | Derbi Atlantis Bullet 2t | Yamaha BWs 12inch |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Displacement (cm³) | 49.4 | 49.2 |
| Power (kw) | - | 2.4 |
| Cooling system | Air | Air |
| Transmission type,final drive | - | Belt |
| Torque (Nm) | - | 3.6 |
| Bore (mm) | 40 | 40 |
| Stroke (mm) | 39.3 | 39.2 |
| Gearbox | Automatic | Automatic |
| Ignition | CDI | CDI |
| Lubrication system | - | Separate lubrication |
| Compression | 10.5:1 | 7.2:1 |
| Chassis | ||
| Front suspension | conventional hydraulic Bracket Crossed | Telescopic fork |
| Rear suspension | linear Monoamortiguador. Crossed | Unit swing |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Diameter (mm) | 110 | 110 |
| Frame type | - | Steel |
| Front tyre | 120/70-12 | 120/70-12 |
| Rear tyre | 120/70-12 | 130/70-12 |
| Front wheel travel (mm) | 65 | 70 |
| Rear wheel travel (mm) | 65 | 70 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,265 | 1,172 |
| Dry weight (kg) | 86 | 82 |
| Power/weight ratio | - | 0.0293 |
| Overall length (mm) | 1,810 | 1,685 |
| Seat height (mm) | 790 | 768 |
| Ground clearance (mm) | - | 124 |
| Performance | ||
| Fuel capacity (l) | 7.1 | 5.3 |