Speedway · 1954
Dolphin Race Fox
MotoLibrary Score
46 /100 Balanced
Power/Weight
0.22 hp/kg
Top Speed
177 km/h
Engine
124 ccm
Technical Overview
1954 NSU Dolphin Race Fox Technical Analysis & Specification Breakdown
Built around NSU's speedway motorcycle platform, the 1954 NSU Dolphin Race Fox relies on a 124 cc (7.6 cu in) air-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 18 HP (13.1 kW) at 11,000 rpm, transferring power to the rear wheel through shaft drive (cardan) final drive. With a specific output of 145.2 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the Dolphin Race Fox measures 80.5 kg (177 lbs) dry, translating to a power-to-weight ratio of 0.22 HP/kg (4.47 kg per horsepower).
Specific Output
145.2 HP/L
Power-to-Weight
0.22 HP/kg (4.47 kg/HP)
Engine
Displacement 124.0 ccm (7.57 cubic inches)
Engine Type Single cylinder, two-stroke
Power 18.0 HP (13.1 kW)) @ 11000 RPM
Fuel System Carburettor
Cooling Air
Transmission
Final Drive Shaft drive (cardan) (final drive)
Performance
Top Speed 177.0 km/h (110.0 mph)
Wheels & Brakes
Wheels Spoked
Dimensions & Weight
Dry Weight 80.5 kg (177.5 pounds)
Power/Weight 0.2236 HP/kg
Other
Starter Kick
More from NSU
Rider Profile
Who Is This Bike For?
🟢
Beginner
A2 license compatible, manageable power.
🏍️
Best For
General Purpose
⚖️
Handling
Very lightweight — easy to handle
Estimate
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