NSU Pony (1937-53) vs NSU 251 TS (1926-29) vs Junak M07R (1956-59)
Comparison technical specifications
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| Make: | NSU | NSU | Junak |
| Model: | Pony | 251 TS | M07R |
| Years: | 1937-53 | 1926-29 | 1956-59 |
| Engine: | Single cylinder, 2 stroke | Single cylinder, 4 stroke, overhead valve | Four stroke, single cylinder, OHV |
| Capacity: | 97 cc / 5.9 cub in | 247 cc / 15.1 cub in | 349 cc / 21.3 cub. in. |
| Cooling: | Air/Oil cooled | Air cooled | Air/Oil cooled |
| Ignition: | Pradnico -magneto flywheel 6V, 15W Bosch or Noris | Magneto | Magneto |
| Max Power: | 2.2 kW / 3 hp @ 4700 rpm | 11.8 kW / 16 hp @ 4400 rpm | 14 kW / 19 hp @ 6000 rpm |
| Transmission: | 2-speed, gearshift on tank | 3 Speed | Four-speed constant-mesh |
| Final Drive: | Chain | Chain | Chain |
| Frame: | Round steel pipe | Steel, integrated open frame with engine as integral component | Double, cradle-type, welded throughout of tubing, provided with holders for side car mounting. |
| Top Speed: | 55 km/h / 34 mph (from 1937: 60 km/h / 37.3 mph) | 100 km/h / 62 mph | 125 km/h / 77.7 mph |