| MODEL | DKW RT 125 2 1957 |
| Year | 1957 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 123 cc / 7.51 cu in |
| Bore X Stroke | 52 x 58 mm / 2.0 x 2.3 in |
| Compression Ratio | — |
| Cooling System | Air |
| Max Power | 4.2 kW / 5.7 hp @ 5000 rpm |
| Max Torque | — |
| Ignition | Magneto |
| Induction | Carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 3-speed |
| Clutch | Wet multiplate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Single cradle |
| Front Suspension | Telescopic fork |
| Rear Suspension | None (rigid) |
| Front Brakes | Drum (expanding) |
| Rear Brakes | Drum (expanding) |
| DIMENSION SPECS | |
| Overall Length | 1959 mm / 77.1 in |
| Overall Width | 660 mm / 26.0 in |
| Overall Height | 660 mm / 26.0 in |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | — |
| Rear Tyre | — |
| FUEL SYSTEM | |
| Fuel Capacity | 9.5 Litres / 2.51 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The RT 125 2 is DKW's post-war 123 cc two-stroke light motorcycle, a simple single-cradle machine with a 3-speed gearbox, telescopic forks and a rigid rear end. It put out a modest 5.7 hp and was meant as cheap, durable everyday transport.
