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Shimano RD-RX400 GRX Rear Derailleur - 2 x 10 Speed, Long Cage, Black

Features: -SHIMANO SHADOW RD+ (10-speed) -Adjustable chain stabilizer prevents chain slapping and drops -Switch stabilizer ON/OFF to match the terrain -Gravel-tuned clutch tension -Maximum front T difference: 16T -Series: SHIMANO GRX 10-speed

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