| Cylinders | 1 |
| Bore | 69 mm (15 LD 225) - 78 mm (15 LD 315) - 82 mm (15 LD 350-400) - 86 mm (15 LD 440) |
| Stroke | 60 mm (15 LD 225) - 66 mm (15 LD 315-350) - 76 mm (15 LD 400-440) |
| Displacement | 224 cm3 (15 LD 225) - 315 cm3 (15 LD 315) - 349 cm3 (15 LD 350) - 401 cm3 (15 LD 400) - 442 cm3 (15 LD 440) |
| Max inclination during operation | 30°, max 30 min / 35°, max 1 min |
| Oil capacity (MAX level.) including oil filter | 0,9 lt. (15 LD 225) - 1,2 lt. (15 LD 315-350) - 1,5 lt. (15 LD 400-440) |
| Dry weight | 28 kg (15 LD 225) - 33 kg (15 LD 315-350) - 45 kg (15 LD 400-440) |