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Shimano GRX RD-RX822-GS Rear Derailleur - 12-Speed Direct Mount Medium Cage Shadow Plus Design 45t Max Low. With an integrated chain stabilizer Shimano GRX RD-RX822 12-speed rear derailleurs feature an intergrated chain stablizer that delivers quieter shifting and more secure chain management in rough terrain. The chain tensioner has an ON/OFF switch for easy wheel removal.
- TECH SPECS
| Largest Cog | 45 |
| Rear Der/Shifter Compatibility | Shimano Road |
| Rear Derailleur Mount Type | Shimano Rear Direct Mount |
| Rear Derailleur Mount Type | 10x1 Standard |
| Drivetrain Speeds | 12 |
| Weight | 290 |
| Chain Wrap Capacity (teeth) | 35 |
| Cage Length | Medium |