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Sport · 1957

Superfox

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MotoLibrary Score
33 /100 Commuter
Power
9 HP
Engine
123 ccm

1957 NSU Superfox Technical Analysis & Specification Breakdown

Built around NSU's sport motorcycle platform, the 1957 NSU Superfox relies on a 123 cc (7.5 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 8.8 HP (6.4 kW) at 6,500 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 71.5 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Within MotoLibrary's NSU archive, this model family spans 3 indexed model years from 1955 to 1957, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
71.5 HP/L
Engine
Displacement 123.0 ccm (7.51 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 8.8 HP (6.4 kW)) @ 6500 RPM
Bore x Stroke 52.0 x 58.0 mm (2.0 x 2.3 inches)
Fuel System Carburettor. Bing
Fuel Control Overhead Cams (OHC)
Cooling Air
Transmission
Final Drive Chain (final drive)
Wheels & Brakes
Front Tyre 2.75-19
Rear Tyre 2.75-19
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake)
Wheels Spoked
Dimensions & Weight
Overall Height 950 mm (37.4 inches)
Overall Length 1987 mm (78.2 inches)
Overall Width 645 mm (25.4 inches)
Other
Starter Kick
More from NSU
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏁
Best For
Sport & Track
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