Description
Shimano GRX RD-RX812 Rear Derailleur – 11-Speed Long Cage Black With Clutch For 1x 42t Low Sprocket Max. The Shimano GRX 11-speed rear derailleur has an integrated chain stabilizer mechanism that provides a quieter experience shifting security and precision on mixed terrain. For rides on smooth surfaces the derailleur features an ON/OFF switch for the chain tensioner. The Shimano Shadow RD+ adjustable chain stabilizer provides silent and uninterrupted rear shifting on rough terrain.
- TECH SPECS
| Rear Derailleur Mount Type | Shimano Rear Direct Mount |
| Rear Derailleur Mount Type | 10×1 Standard |
| Rear Der/Shifter Compatibility | Shimano Road |
| Cage Length | Long |
| Drivetrain Speeds | 11 |
| Weight | 267 |
| Color | Black |
| Chain Wrap Capacity (teeth) | 31 |
| Largest Cog | 42 |
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