Gravel-GRX400-20S Derailleur/Brake System
| Shift lever: | SHIMANO ST-RX400 |
| Front Derailleur: | SHIMANO FD-RX400 |
| Rear Derailleur: | SHIMANO RD-RX400 |
| Flywheel: | SHIMANO CS-HG500 (11-13-15-17-19-21-23-26-30-34T) |
| Crank: | SHIMANO FC-RX600, 46-30T(170MM) |
The standard brake setting is Left hand control front brake, Right hand control rear brake, if you want to change, please let us know.