| Model | HG51 |
| Practical | VTT |
| Reference supplier | ECSHG518130 |
| Number of compatible speeds | 8 |
| Assembly | HG - M |
| Matter | Acier |
| Pinion technology | HyperGlide |
| Flooring | 11 - 30 dents |
| Gear details | 11-13-15-17-20-23-26-30 |
| Main colour | Silver |
| Weight in grams | 295 |
11-13-15-17-20-23-26-30