- X-HORIZON design reduces shift force, ghost shifting and chain slap
- 12-tooth X-SYNC pulley wheels
- Large upper pulley offset automatically adjusts chain gap
- Sealed cartridge bearings
- Aluminum Cage
| Brand | SRAM |
| Item type | Rear derailleur |
| Item name | GX type 2.1 |
| Speed | 1x11 speed |
| Color | Black/red |