| MODEL | ADLER M 250 1954 |
| Year | 1954 |
| Engine Type | Twin, two-stroke |
| Displacement / Capacity | 250 cc / 15.25 cu in |
| Bore X Stroke | 54 x 54 mm / 2.1 x 2.1 in |
| Compression Ratio | — |
| Cooling System | Air |
| Max Power | 11.7 kW / 16 hp @ 5590 rpm |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4-speed |
| Clutch | Wet multiplate |
| Final Drive | — |
| CHASSIS SPECS | |
| Frame | Semi double cradle |
| Front Suspension | — |
| Rear Suspension | — |
| Front Brakes | Drum, expanding |
| Rear Brakes | Drum, expanding |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 135 kg / 297.6 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | 12 Litres / 3.17 US gal |
| Fuel Consumption | 5.7 Litres/100 km / 41.3 mpg |
| Top Speed | — |
Larger-capacity roadster with a 250 cc parallel-twin two-stroke and four-speed gearbox, one step up from the M 200. A touring-style machine with a spring-mounted single seat.
