Comparison of AJS Firefox 50 2012 and AJS JSM 50 [S]ave
| Attribute |  AJS JSM 50 × |  AJS Firefox 50 2012 × |
|---|---|---|
| General | ||
| Production from (year) | 2016 | 2012 |
| Make | AJS | AJS |
| Model | AJS JSM 50 | AJS Firefox 50 |
| Category | Super motard | Scooter |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor | Carburettor |
| Engine details | Balance shaft | - |
| Displacement (cm³) | 49.3 | 49 |
| Power (kw) | 3.4 | 2.2 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Chain | Belt |
| Bore (mm) | 56 | 40 |
| Stroke (mm) | 49 | 39.2 |
| Gearbox | 5-speed | Automatic |
| Driveline | - | Automatic Twist and Go |
| Ignition | Coil, CDI | Battery 12v 6Ah |
| Clutch | Wet. multi-plate | Ignition Coil CDI |
| Chassis | ||
| Front suspension | Telescopic fork | Telescopic fork |
| Rear suspension | Single shock | Single shocks |
| Front brakes | Double disc | Single disc |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Frame type | - | Steel |
| Front tyre | 110/70-17 | 120/70-12 |
| Rear tyre | 130/70-17 | - |
| Wheels | Alloy wheels | - |
| Other | ||
| Starter | Electric | 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 |
| Dimensions | ||
| Wheelbase (mm) | 1,400 | 1,320 |
| Dry weight (kg) | 105 | 85 |
| Power/weight ratio | 0.0324 | 0.0259 |
| Seat height (mm) | 820 | 825 |
| Performance | ||
| Top speed (km/h) | 45 | 49 |
| Fuel capacity (l) | 8.5 | 4.7 |
| Battery capacity (Ah) | 6 | 6 |
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