Honda CB 550 SS vs NSU 601 OSB (1975)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Honda CB 550 SSstacks up against the NSU 601 OSB. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Honda CB 550 SS | NSU 601 OSB |
|---|---|---|
| Model year | 1975 | 1941 |
| Price | — | — |
| Engine | 544 cc | 562 cc |
| Horsepower | 50 hp | 26 hp |
| Weight | — | 150 kg |
| Fuel capacity | 4.5 L | — |
| Fuel type | petrol | petrol |
| Transmission | 5-speed | — |
| Front brakes | Single disc | Expanding brake (drum brake) |
| Rear brakes | Expanding brake | Expanding brake (drum brake) |
| Tires | 3.25-19 / 3.75-18 | 3.50-19 / 3.50-19 |
Honda CB 550 SS vs NSU 601 OSB — which should you buy?
Picking between the Honda CB 550 SS and the NSU 601 OSB usually comes down to the numbers you care about most. On paper, the Honda CB 550 SS brings 50 hp, while the NSU 601 OSB counters with 26 hp at 150 kg.
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:

