GRX RD-RX820
$169.99
- With an integrated chain stabilizer mechanism, the GRX rear derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features an on/off switch for the chain tensioner. The RD-RX820 rear derailleur is compatible with MTB cassettes with a 42T low sprocket max.
- GRX 12 speed rear derailleur for double cranks
- Adjustable chain stabilizer prevents chain slapping and drops
- Gravel-tuned clutch tension can be toggled ON/OFF to match the terrain
- Maximum front difference: 17T
- Total capacity: 42T
- Low sprocket: Max. 34T/Min. 30T
- Top sprocket: 11T
Attributes
| Minimum Cog | 11T |
| RD Spring Type | Shadow Plus |
| Cage | GS |
| Maximum Cog | 34T |
| Primary Color | Grey |
| Max Front Difference | 17T |
| Speed | 12 |
| RD Capacity | 42T |