| Attribute | AJS Firefox 50 2012 × | AJS Crazy Naked 50 × |
|---|---|---|
| General | ||
| Production from (year) | 2012 | 2011 |
| Make | AJS | AJS |
| Model | AJS Firefox 50 | AJS Crazy Naked 50 |
| Category | Scooter | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor |
| Displacement (cm³) | 49 | 40 |
| Power (kw) | 2.2 | 2.5 |
| Cooling system | Air | Air |
| Transmission type,final drive | Belt | Belt |
| Bore (mm) | 40 | 40 |
| Stroke (mm) | 39.2 | 39.2 |
| Gearbox | Automatic | Automatic |
| Fuel control | - | Single Overhead Cams (SOHC) |
| Driveline | Automatic Twist and Go | - |
| Ignition | Battery 12v 6Ah | Coil CDI |
| Clutch | Ignition Coil CDI | Twist and go. |
| Chassis | ||
| Front suspension | Telescopic fork | Telescopic fork |
| Rear suspension | Single shocks | Single shocks |
| Front brakes | Single disc | Single disc |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Frame type | Steel | Steel |
| Front tyre | 120/70-12 | 120/70-12 |
| Rear tyre | - | 130/70-12 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
|
|
| Carrying capacity | Lockable storage space under the seat.. Luggage rack pre-drilled to accept a top box. | - |
| Electrical Voltage (V) | 12 | 12 |
| Dimensions | ||
| Wheelbase (mm) | 1,320 | 1,290 |
| Dry weight (kg) | 85 | 90 |
| Power/weight ratio | 0.0259 | 0.0278 |
| Seat height (mm) | 825 | 775 |
| Performance | ||
| Top speed (km/h) | 49 | 48 |
| Fuel capacity (l) | 4.7 | 5 |
| Battery capacity (Ah) | 6 | 6 |