Shimano GRX RD-RX400 Rear Derailleur - 10-Speed Long Cage Black With Clutch. GRX RD-RX400 Rear DerailleurA Shadow RD chain stabilizer prevents chain slapping and drops The gravel-tuned clutch tension helps to provide smooth and reliable mixed surface shifting Stabilizer can be turned on/off to match terrain Compatible only with 10-speed ST-RX400 ST-4700 ST4720 ST-4725 ST-RS405 and SL-4700 shift levers
- TECH SPECS
| Largest Cog | 36 |
| Color | Black |
| Rear Der/Shifter Compatibility | Shimano Road |
| Rear Derailleur Mount Type | Shimano Rear Direct Mount |
| Rear Derailleur Mount Type | 10x1 Standard |
| Drivetrain Speeds | 10 |
| Weight | 303 |
| Chain Wrap Capacity (teeth) | 41 |
| Cage Length | Long |
