| Modelo | Velocidad máxima hacia adelante | Velocidad máxima marcha atrás |
|---|---|---|
| GTH844 | 27.4 km/h - 17 millas/h | |
| GTH842 | 29 km/h - 18 millas/h | |
| GTH644 | 27.4 km/h - 17 millas/h | |
| GTH636 | 29 km/h - 18 millas/h | |
| GTH6025ER | 30 km/h - 18.6 millas/h | |
| GTH5519 | 24.1 km/h - 15 millas/h | |
| GTH5022R | 30 km/h - 18.6 millas/h | |
| GTH4514EX | 35 km/h - 21.7 millas/h | |
| GTH4017SX | 28 km/h - 17.4 millas/h | |
| GTH4017EX | 35 km/h - 21.7 millas/h | |
| GTH4013SX | 30 km/h - 18.6 millas/h | |
| GTH4013EX | 35 km/h - 21.7 millas/h | |
| GTH3518R | 30 km/h - 18.6 millas/h | |
| GTH3512 | 30 km/h - 18.6 millas/h | |
| GTH3007 | 24 km/h - 14.9 millas/h | 24 km/h - 14.9 millas/h |
| GTH2506 | 24 km/h - 14.9 millas/h | 24 km/h - 14.9 millas/h |
| GTH1056 | 27 km/h - 16.8 millas/h | |
| GTH1048 | 27 km/h - 16.8 millas/h |