Providing a wide gear range so you can spin a comfortable cadence on any terrain, the Shimano RD-RX820 2x12-speed rear derailleur also has an integrated chain stabilizer for quieter shifting.
- Compatible with 11–34T and 11–36T 12-speed cassettes (not included)
- Shimano SHADOW RD+ technology with an adjustable chain stabilizer to prevent chain slap and drops
- Chain tensioner has an on/off switch for smooth and reliable shifting on mixed surfaces
- Maximum front chainring difference: 17T
- Top sprocket: maximum 11T/minimum 11T
- Low sprocket: maximum 36T/minimum 34T
- Total capacity: 42T
Imported.
View the Shimano GRX Product LineView all Shimano Rear Derailleurs| Best Use | Gravel Cycling |
|---|---|
| Derailleur Type | Rear |
| Cage Length | Long Cage |
| Max Rear Cog Size | 36T |
| Speeds | 12-speed |
| Weight | 270 grams |