Shimano GRX RD-RX400 Rear Derailleur (Black) (10 Speed) (Long Cage) (Shadow Plus) - IRDRX400
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Shimano GRX RD-RX400 Rear Derailleur (Black) (10 Speed) (Long Cage) (Shadow Plus) - IRDRX400, The Shimano GRX FD-RX400 rear derailleur features an integrated chain stabilizer to keep the shifting smooth and precise over a variety of terrain. Features: Adjustable chain stabilizer prevents chain slapping and drops Switch stabilizer ON/OFF to match the terrain Gravel-tuned clutch tension Specifications: Weight: 303g Capacity: 41T Max Low: 36T Speed: 10