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. T
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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.
| 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 | SHIMANO SHADOW RD+ |
| Top sprocket_Max. | 11T |
| Top sprocket_Min. | 11T |
| Total capacity | 31T |
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