| Model | RD-GX-T21-A1 |
| Practical | VTT |
| Derailleur mount | Classique |
| Draw | Exact Actuation |
| Yoke | Longue |
| Number of compatible speeds | 10, 2x10 |
| Weight in grams | 302 |
| Technology | Roller Bearing Clutch / Direct Route |
| Specificities | Cage Lock |
| Détails | |
| Large maximum sprocket | 36 dents |
10 x 2 speeds maximum sprocket 36 teeth 302g