GRX Rear Derailleur 10-speed (RD-RX400)

With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner.

• Silent and uninterrupted rear shifting on rough terrain
• Adjustable chain stabilizer prevents chain slapping and drops
• SHIMANO SHADOW RD+
• Smooth and reliable mixed surface shifting
• Switch stabilizer ON/OFF to match the terrain
• Gravel-tuned clutch tension
• Compatible with current 10s road DUAL CONTROL LEVER
• Wide range front gearing
• Maximum front T difference: 16T
• Top sprocket: Max. 11T/Min. 11T
• Low sprocket: Max. 36T/Min. 32T
• Total capacity: 41T