Back to Bike FinderYears: 1958 · 1957 · 1956 · 1955 · 1954 · 1953 · 1952
DKW RT 125 2
1952Sportbike

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

Introducing the 1952 DKW RT 125 2, a motorcycle that stands as a true testament to the craftsmanship and innovation of post-war Germany. Positioned in the sport category, this lightweight machine was designed for both urban commuting and spirited rides through winding country roads. With a rich legacy derived from DKW’s illustrious history in motorcycle production, the RT 125 2 captures the essence of the era with its sleek lines and no-nonsense engineering. It appeals to enthusiasts who crave a blend of classic style and practical functionality, making it a sought-after model for collectors and riders who appreciate the heritage of motorcycling. At the heart of the RT 125 2 is a spirited single-cylinder, two-stroke engine boasting a displacement of 123 ccm. This nimble powerplant churns out 5.70 horsepower at 5000 RPM, ensuring that riders experience a lively and engaging ride. With a compression ratio of 6.1:1 and a compact bore and stroke of 52.0 x 58.0 mm, the engine is designed to deliver responsive acceleration while remaining easy to handle. The kick-start ignition system and wet multiplate clutch further enhance the riding experience, allowing for seamless gear shifts through its 3-speed gearbox. The lightweight frame, tipping the scales at just 86 kg, combined with its chain final drive, gives the RT 125 2 an impressive power-to-weight ratio of 0.0663 HP/kg, making it a nimble companion on any adventure. The DKW RT 125 2 is not just about performance; it integrates practical features and technology that enhance both comfort and safety. The motorcycle features a single cradle frame that provides stability and agility, complemented by a telescopic front fork for improved handling over varying road conditions. Both the front and rear brakes utilize expanding drum brakes with a diameter of 140 mm, ensuring reliable stopping power. With a fuel capacity of 9.50 liters, this motorcycle is also designed for long rides without frequent refueling stops, allowing riders to enjoy the open road with peace of mind. **

Pros

  • Lightweight and nimble, making it easy to handle for both new and experienced riders.
  • Classic design with significant historical context, appealing to collectors and vintage enthusiasts.
  • Reliable performance from the two-stroke engine, delivering responsive power for spirited rides.

Cons

  • Limited top speed and power output may not satisfy riders looking for high-performance capabilities.
  • The absence of advanced suspension features may result in a less comfortable ride on rough terrains.
  • Drum brakes, while reliable, may not provide the same level of stopping power as modern disc brakes, especially in emergency situations.

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)
Compression
6.1:1
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)