| Cylinders | 2 |
| Bore | 90 mm (RD 210-211) - 95 mm (RD 270-278) |
| Stroke | 75 mm (RD 210-211) - 85 mm (RD 270-278) |
| Displacement | 954 cm3 (RD 210-211) - 1205 cm3 (RD 270-278) |
| Max inclination during operation | 30°, max 30 min / 35°, max 1 min |
| Oil capacity (MAX level.) including oil filter | 3,0 lt. |
| Dry weight | 78 kg (RD 210-211) - 96 kg (RD 270-278) |