Shimano GRX RX820 12-Speed Rear Derailleur
$184.99
Details
Enhanced chain security and quieter, more stable shifting for gravel riding
The RD-RX820 is compatible with 11-34T and 11-36T 12-speed cassettes, providing a wide gear range so you can spin a comfortable cadence no matter the terrain type. The SHIMANO GRX 12-speed rear derailleur also features an integrated chain stabilizer that delivers quieter shifting and more secure chain management during rough rides. And the chain tensioner has an ON/OFF switch for outings on smooth surfaces.
- Silent and secure rear shifting on rough terrain
- Adjustable chain stabilizer prevents chain slap and drops
- SHIMANO SHADOW RD+
- Smooth and reliable shifting on mixed surfaces
- ON/OFF stabilizer switch matches terrain
- Maximum front chainring difference: 17T
- Top sprocket: Max. 11T/Min. 11T
- Low sprocket: Max. 36T/Min. 34T
- Total capacity: 42T
| CAGE LENGTH | One-Spec |
| TOTAL CAPACITY | 42T |
| MAX FRONT DIFFERENCE | 17 |
| CABLE ADJUSTER | X |
| COLOR | SERIES COLOR |
| AVERAGE WEIGHT | 270g |
| MOUNT | Direct attachment (conventional) |
| GUIDE PULLEY BEARING | X |
| TENSION PULLEY BEARING | X |
| NUMBER OF PULLEY TEETH | 11/13T |
| MAX LOW SPROCKET | 36 |
| MIN LOW SPROCKET | 34 |
| REAR SPEEDS | 12 |
Videos
Part Numbers
| Option | UPC | MPN | Store SKU |
|---|---|---|---|
| One-Spec / Black / 12-speed | 192790303611 | IRDRX820 | REA44306730D |
Reviews
Shimano GRX RX820 12-Speed Rear Derailleur
$184.99