SHIMANO GRX - Rear Derailleur - SHIMANO SHADOW RD+ - 42T max low sprocket - 11-speed
With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. The RD-RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max.
FEATURES
- Silent and uninterrupted rear shifting on rough terrain
- Adjustable chain stabilizer prevents chain slapping and drops
- SHIMANO SHADOW RD+
- Smooth and reliable mixed surface shifting
- Switch stabilizer ON/OFF to match the terrain
- Gravel-tuned clutch tension
- Compatible with current road DUAL CONTROL LEVER
- Top sprocket: Max. 11T/Min. 11T
- Low sprocket: Max. 42T/Min. 40T
- Total capacity: 31T
PRODUCT SPECIFICATIONS
| MODEL NO | RD-RX812 |
|---|---|
| SERIES | GRX 11-speed |
| Color | Series color |
| Average weight | 267 |
| Rear speeds | 11 |
|---|---|
| Compatible chain | LINKGLIDE, HG 11-speed |
| Top-normal spring type|SHIMANO SHADOW RD+ | ✔ |
| Mount|Direct attachment (conventional) | ✔ |
| Mount|Direct mount | ✔ |
| Cable adjuster | ✔ |
| Total capacity | 31T |
| Low sprocket|Max. | 42T |
| Low sprocket|Min. | 40T |
| Top sprocket|Max. | 11T |
| Top sprocket|Min. | 11T |
| Fluoric coated link bushings | 4 |
| Pulley|Guide pulley bearing | ✔ |
| Pulley|Tension pulley bearing | ✔ |
| Pulley|Teeth | 11T |
| Pulley|Sunken type pulley screw | ✔ |
| B-axle|Hollow axle | ✔ |
