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DKW RT 125 2
1954Sportbike

DKW RT 125 2

Key specifications

Engine
123 cc
Power
6 HP
Weight
86 kg
Fuel type
petrol
Fuel capacity
2.5 L
Transmission
3-speed
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

### Discovering the 1954 DKW RT 125 2: A Classic Sport Motorcycle The 1954 DKW RT 125 2 stands as a beacon of post-war German engineering, capturing the spirit of the era with its lightweight design and spirited performance. Positioned firmly in the sport category, the RT 125 2 was designed for enthusiasts seeking a blend of agility and fun on two wheels. With its iconic styling and compact dimensions, it appeals to both collectors and riders who appreciate vintage motorcycles. This model marked DKW's dedication to producing efficient, reliable machines that could handle the burgeoning demand for personal transportation in the 1950s. At the heart of the RT 125 2 lies a 123cc single-cylinder, two-stroke engine that delivers a peppy 5.7 horsepower at 5,000 RPM. This power might seem modest by today's standards, but it provides a thrilling experience that encourages spirited riding. The bike's lightweight frame, tipping the scales at only 86 kg (189.6 pounds), combined with its 3-speed gearbox, allows for nimble handling and responsive acceleration. Riders will appreciate the simplicity and rawness of the two-stroke engine, making each ride an engaging experience that embodies the essence of motorcycling in the mid-20th century. The DKW RT 125 2 is equipped with several features that contribute to its rideability and performance. The single cradle frame, paired with telescopic front forks, offers stability and comfort, while the drum brakes—both front and rear—provide reliable stopping power. Riders can feel confident maneuvering through city streets or enjoying a weekend ride on the open road. The kick starter harkens back to motorcycling's roots, adding a touch of nostalgia to the riding experience. With a modest fuel capacity of 9.5 liters (2.51 gallons), you can expect decent range for those leisurely rides, making it a practical choice for short excursions. **

Pros

  • Lightweight and Agile: Weighing just 86 kg, the RT 125 2 is exceptionally easy to handle, making it perfect for new riders and urban commuting.
  • Classic Two-Stroke Performance: The single-cylinder, two-stroke engine provides a thrilling and visceral riding experience that many enthusiasts crave.
  • Simple Maintenance: With fewer complex systems, the RT 125 2 is relatively easy to maintain, making it an ideal classic for do-it-yourself enthusiasts.

Cons

  • Limited Power Output: With only 5.7 HP, it may struggle to keep up with modern traffic, especially on highways.
  • Basic Suspension: The lack of rear suspension means a stiffer ride, which may not be comfortable for longer journeys.
  • Drum Brakes: While adequate for the time, the drum brakes can feel less responsive compared to modern disc brakes, which may concern some riders.

Technical details

Source specification data

Make
DKW
Model
RT 125 2
Category
Sport
Starter
Kick
Power
5.70 HP (4.2 kW)) @ 5000 RPM
Clutch
Wet multiplate
Gearbox
3-speed
Ignition
Magneto
Fuel System
Carburettor
Bore X Stroke
52.0 x 58.0 mm (2.0 x 2.3 inches)
Displacement
123.00 ccm (7.51 cubic inches)
Cooling System
Air
Engine Details
Single cylinder, two-stroke
Transmission Type Final Drive
Chain
Dry Weight
86.0 kg (189.6 pounds)
Fuel Capacity
9.50 litres (2.51 gallons)
Overall Width
660 mm (26.0 inches)
Overall Height
660 mm (26.0 inches)
Overall Length
1,959 mm (77.1 inches)
Power Weight Ratio
0.0663 HP/kg
Seat
Single spring-mounted
Wheels
Spoked
Rear Tyre
2.50-19
Frame Type
Single cradle
Front Tyre
2.50-19
Rear Brakes
Expanding brake (drum brake)
Front Brakes
Expanding brake (drum brake)
Rear Suspension
None
Front Suspension
Telescopic fork
Rear Brakes Diameter
140 mm (5.5 inches)
Front Brakes Diameter
140 mm (5.5 inches)