Description
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
SPECIFICATIONS
| maximum front chainring difference | 17T |
| top sprocket | Max. 11T/Min. 11T |
| low sprocket | Max. 36T/Min. 34T |
| total capacity | 42T |
| model no | RD-RX820 |
| series | GRX 12-speed |
| average weight | 270 |
| rear speeds | 12 |
| compatible chain | HG 12-speed |