| MODEL | DKW RT 125 2H 1955 |
| Year | 1955 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 123 cc / 7.51 cu in |
| Bore X Stroke | 52 x 58 mm / 2 x 2.3 in |
| Compression Ratio | 6.5:1 |
| 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 | Expanding drum brake |
| Rear Brakes | Expanding drum brake |
| DIMENSION SPECS | |
| Overall Length | 1959 mm / 77.1 in |
| Overall Width | 660 mm / 26 in |
| Overall Height | 660 mm / 26 in |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 2.50-19 |
| Rear Tyre | 2.50-19 |
| FUEL SYSTEM | |
| Fuel Capacity | — |
| Fuel Consumption | — |
| Top Speed | 84 km/h / 52.2 mph |
The RT 125 2H is a light 125 cc DKW with a rigid single-cradle frame, telescopic forks and a three-speed gearbox. It is a modest air-cooled two-stroke commuter with about 5.7 hp and a top speed in the mid 80s km/h.
