NSU Delphin III vs Blackburne 4HP (1956)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the NSU Delphin IIIstacks up against the Blackburne 4HP. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecNSU Delphin IIIBlackburne 4HP
Model year19561919
Price
Engine499 cc499 cc
Horsepower110 hp
Weight273 kg
Fuel typepetrolpetrol
Front brakesExpanding brake (drum brake)
Rear brakesExpanding brake (drum brake)
Tires3.25-18 / 3.50-20 3-28 / 3-28

NSU Delphin III vs Blackburne 4HP — which should you buy?

Picking between the NSU Delphin III and the Blackburne 4HP usually comes down to the numbers you care about most. On paper, the NSU Delphin III brings 110 hp in a 273 kg package, while the Blackburne 4HP counters with its own power figure.

Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: