Junak B20 (1960-65) vs NSU 201 ZBD (1938-40)
Comparison technical specifications
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| Make: | Junak | NSU |
| Model: | B20 | 201 ZBD |
| Years: | 1960-65 | 1938-40 |
| Engine: | Four stroke, single cylinder, OHV | Single cylinder, two stroke. |
| Capacity: | 349 cc / 21.3 cub. in. | 198 cc / 12.1 cub in |
| Cooling: | Air/Oil cooled | Air/Oil cooled |
| Ignition: | Magneto | Magneto |
| Max Power: | 14 kW / 19 hp @ 6000 rpm | 5.1 kW / 7 hp @ 4000 rpm |
| Transmission: | Four-speed constant-mesh | 4 Speed block gearbox |
| Final Drive: | Chain | Chain in oil bath |
| Frame: | Double, cradle-type, welded throughout of tubing, provided with holders for side car mounting. | Steel, double pipe |
| Top Speed: | 75 km/h / 46.6 mph | 75 km/h / 46.6 mph |