User Rating: /5 · No user ratings yet✓ Your rating was saved
MotoLibrary Score
38/100Commuter
Power
17 HP
Top Speed
120 km/h
Engine
124 ccm
Technical Overview
1972 Zweirad-Union RT 125 E Technical Analysis & Specification Breakdown
Positioned in Zweirad-Union's motorcycle lineup, the 1972 Zweirad-Union RT 125 E relies on a 124 cc (7.6 cu in) air-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 17 HP (12.4 kW) at 4,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 137.1 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the RT 125 E measures 108 kg (238 lbs) wet (curb), translating to a power-to-weight ratio of 0.16 HP/kg (6.35 kg per horsepower). The 10.5-liter (2.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 120 km/h (75 mph).
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.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
