- Description
- Adjustable chain stabilizer prevents chain slapping and drops
- Switch stabilizer ON/OFF to match the terrain
- Gravel-tuned clutch tension
- Silent and uninterrupted rear shifting on rough terrain
- Smooth and reliable mixed surface shifting
- Compatible with current road DUAL CONTROL LEVER
- Top sprocket: Max. 11T/Min. 11T
- Low sprocket: Max. 42T/Min. 40T
- Total capacity: 31T
- Frequently Asked Questions
- Delivery & Returns
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.
FEATURE
BENEFIT
PRODUCT SPECIFICATIONS
| MODEL NO | RD-RX812 |
|---|---|
| SERIES | SHIMANO GRX 11-speed |
| Color | Series color |
| Average weight | 267 g |
| B-Axle_Hollow axle | ✔ |
|---|---|
| Cable adjuster | ✔ |
| Compatible chain | HG-EV 11-speed/HG-X11 |
| Direct attachment (Conventional) | ✔ |
| Fluoric coated link bushings | 4 |
| Low sprocket_Max. | 42T |
| Low sprocket_Min. | 40T |
| Pulley_G pulley bearing | ✔ |
| Pulley_Sunken type pulley bolt | ✔ |
| Pulley_Teeth | 11T |
| Pulley_T pulley bearing | ✔ |
| Rear speeds | 11 |
| Top-Normal spring type_SHADOW RD+ | ✔ |
| Top-Normal Spring Type | SHIMANO SHADOW RD+ |
| Top sprocket_Max. | 11T |
| Top sprocket_Min. | 11T |
| Total capacity | 31T |
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