| Modèle | Vitesse maximale de déplacement |
|---|---|
| R996 | 2.2 km/h - 1.4 mile / h |
| R995 | 2.7 km/h - 1.7 mile / h |
| R994 | 2.6 km/h - 1.6 mile / h |
| R984C | 2.9 km/h - 1.8 mile / h |
| R9800 | 1.8 km/h - 1.1 mile / h |
| R974C | 4.4 km/h - 2.7 mile / h |
| R964C | 4.1 km/h - 2.5 mile / h |
| R9350 | 3 km/h - 1.9 mile / h |
| R9250 | 2.7 km/h - 1.7 mile / h |