| Attribute | Value |
| General |
| Production from | 2011 year |
| Make | AJS |
| Model | AJS JSM Trail 125 |
| Category | Trial |
| Engine and transmission |
| Engine type | Single cylinder, four-stroke |
| Valves per cylinder | Add |
| Fuel system | Carburettor |
| Engine details | Add |
| Displacement | 124 cm³ |
| Power | 7.3 kw |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Add |
| Transmission type,final drive | Chain |
| Torque | Add |
| Bore | 54 mm |
| Stroke | 54 mm |
| Gearbox | 5-speed |
| Greenhouse gases | Add |
| Fuel control | Overhead Cams (OHC) |
| Emission details | Add |
| Driveline | Add |
| Ignition | Add |
| Clutch | Add |
| Lubrication system | Add |
| Compression | Add |
| Exhaust system | Add |
| Chassis |
| Front suspension | USD telefork |
| Rear suspension | Pro Shock linked. |
| Front brakes | Single disc |
| Rear brakes | Single disc |
| Diameter | Add |
| Frame type | Add |
| Front tyre | 3.00-21 |
| Rear tyre | 4.10-18 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | Add |
| Rear wheel travel | Add |
| Trail | Add |
| Rake (fork angle) | Add |
| Performance |
| Acceleration 0-100 km/h | Add |
| Other |
| Starter | Electric |
| Color options | |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | 12 V |
| Dimensions |
| Wheelbase | 1,400 mm |
| Kerb weight | Add |
| Dry weight | 115 kg |
| Power/weight ratio | 0.0635 |
| Overall height | Add |
| Overall length | Add |
| Overall width | Add |
| Seat height | 760 mm |
| Alternate seat height | Add |
| Ground clearance | Add |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Top speed | 100 km/h |
| Length | Add |
| Width | Add |
| Reserve fuel capacity | Add |
| Fuel capacity | 8.5 l |
| Oil capacity | Add |
| Height | Add |
| Battery capacity | 6 Ah |