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Sport · 1958

RT 125 2

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MotoLibrary Score
32 /100 Commuter
Power
6 HP
Engine
123 ccm

1958 DKW RT 125 2 Technical Analysis & Specification Breakdown

Positioned in DKW's sport motorcycle lineup, the 1958 DKW RT 125 2 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 7 indexed model years from 1952 to 1958, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
46.3 HP/L
Engine
Displacement 123.0 ccm (7.51 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Power 5.7 HP (4.2 kW)) @ 5000 RPM
Bore x Stroke 52.0 x 58.0 mm (2.0 x 2.3 inches)
Fuel System Carburettor
Ignition Magneto
Cooling Air
Transmission
Gearbox 3-speed
Final Drive Chain (final drive)
Clutch Wet multiplate
Chassis
Frame Type Single cradle
Front Suspension Telescopic fork
Rear Suspension None
Wheels & Brakes
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake)
Wheels Spoked
Dimensions & Weight
Overall Height 660 mm (26.0 inches)
Overall Length 1959 mm (77.1 inches)
Overall Width 660 mm (26.0 inches)
Other
Starter Kick
More from DKW
Buying Checklist

Before You Compare This Bike

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.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏁
Best For
Sport & Track
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