| Modelo | Despeje sobre el suelo | Velocidad máxima |
|---|---|---|
| RSC8EX | 152.4 mm - 6 pulgada | 12.9 km/h - 8 millas/h |
| RSC6EX | 127 mm - 5 pulgada | 12.9 km/h - 8 millas/h |
| RR4EX | 50.8 mm - 2 pulgada | 7.7 km/h - 4.8 millas/h |
| Gregory RSC7EX | 127 mm - 5 pulgada | 11.3 km/h - 7 millas/h |
| Gregory RSC5EX | 127 mm - 5 pulgada | 12.9 km/h - 8 millas/h |
| Gregory RSC4EX | 101.6 mm - 4 pulgada | 13.5 km/h - 8.4 millas/h |
| Gregory RSC3EX | 101.6 mm - 4 pulgada | 14.5 km/h - 9 millas/h |
| Gregory RS6EX | 7.7 km/h - 4.8 millas/h | |
| Gregory RS5EX | 7.7 km/h - 4.8 millas/h | |
| Gregory RS4EX | 7.7 km/h - 4.8 millas/h | |
| Gregory RS3EX | 7.7 km/h - 4.8 millas/h | |
| Gregory RR6EX | 50.8 mm - 2 pulgada | 7.7 km/h - 4.8 millas/h |
| Gregory RR5EX | 50.8 mm - 2 pulgada | 7.7 km/h - 4.8 millas/h |
| Gregory RR3EX | 50.8 mm - 2 pulgada | 7.7 km/h - 4.8 millas/h |
| Gregory RC4EX | 7.7 km/h - 4.8 millas/h | |
| Gregory RC3EX | 7.7 km/h - 4.8 millas/h |