Zweirad-Union RT 125 E 1973 - Specifications & Review

Unleashing the Spirit of the ’70s: The 1973 Zweirad-Union RT 125 E

The 1973 Zweirad-Union RT 125 E stands as a testament to the ingenuity of mid-20th-century motorcycle engineering, making its mark in the allround category as a versatile machine for both urban commuting and spirited weekend rides. With its striking blend of classic design and practical functionality, the RT 125 E appeals to a broad spectrum of motorcyclists, from nostalgic enthusiasts who appreciate vintage aesthetics to modern riders seeking an accessible entry into the world of two-stroke performance. This motorcycle encapsulates the essence of its era, offering an engaging ride with a flair that’s hard to find in today’s market.

At the heart of the RT 125 E lies a robust single-cylinder, two-stroke engine with a displacement of 124 cc, delivering a spirited 17 horsepower at 7,500 RPM. This powerplant, combined with an impressive compression ratio of 11.8:1, allows the bike to reach a top speed of 120 km/h (74.6 mph), offering exhilarating performance for its size. The 6-speed gearbox provides seamless shifting, empowering riders to tackle various terrains with confidence. Whether weaving through city traffic or cruising along country roads, the air-cooled engine’s responsive nature ensures a dynamic riding experience, while its lightweight design—just 108 kg (238.1 lbs)—contributes to nimble handling and agility.

The RT 125 E is not merely about performance; it integrates thoughtful features that enhance the overall riding experience. With a fuel capacity of 10.5 liters (2.77 gallons), this motorcycle is designed for longer rides without the constant concern for fuel stops. The expanding brakes at both the front and rear provide reliable stopping power, instilling confidence in riders as they navigate diverse conditions. The clean lines of its design, coupled with the classic appeal of the two-stroke engine, make the RT 125 E not just a means of transportation, but a piece of art that captures the spirit of its time.

Pros and Cons of the 1973 Zweirad-Union RT 125 E

Pros:

1. Lightweight & Agile: At just 108 kg, the RT 125 E offers nimble handling and easy maneuverability, making it ideal for urban environments.
2. Classic Two-Stroke Performance: The single-cylinder, two-stroke engine delivers lively acceleration and a distinctive exhaust note that appeals to enthusiasts.
3. Versatile Design: With its allround category positioning, this motorcycle seamlessly adapts to both daily commuting and leisure rides.

Cons:

1. Limited Power for Highway Cruising: While it achieves respectable speeds, it may struggle to keep up with faster traffic on highways.
2. Basic Suspension & Braking: The expanding brake system and standard suspension may lack the advanced features found in modern motorcycles, limiting performance in more demanding conditions.
3. Maintenance: The two-stroke engine requires regular maintenance and attention to ensure optimal performance, which may not suit every rider's preference.

In conclusion, the 1973 Zweirad-Union RT 125 E is a charming blend of vintage style and practical functionality, making it a delightful choice for riders who appreciate the thrill of classic motorcycles. Whether you’re a collector or looking to experience the raw joy of two-stroke power, this motorcycle is sure to leave a lasting impression.