Bella 151

1955 Zündapp Bella 151 Technical Analysis & Specification Breakdown

At the heart of the 1955 Zündapp Bella 151 scooter motorcycle, Zündapp pairs a 147 cc (9 cu in) single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 7.3 HP (5.3 kW) at 4,700 rpm. With a specific output of 49.7 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the Bella 151 measures 141 kg (311 lbs) dry, translating to a power-to-weight ratio of 0.05 HP/kg (19.32 kg per horsepower).

Within MotoLibrary's Zündapp archive, this model family spans 2 indexed model years from 1955 to 1956, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.