Built around DKW's sport motorcycle platform, the 1954 DKW RT 125 2H pairs a 123 cc (7.5 cu in) air-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 5.7 HP (4.2 kW) at 5,000 rpm, transferring power to the rear wheel through a 3-speed gearbox and chain final drive. With a specific output of 46.3 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
Within MotoLibrary's DKW archive, this model family spans 4 indexed model years from 1954 to 1957, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
