GRX Di2 RD-RX825

SHIMANO's GRX Di2 12-speed rear derailleur features a built-in wireless connectivity unit and charging port, ensuring fast and reliable shifting for mixed-terrain riding and easy recharging. Integrated SHADOW RD+ technology prevents chain slap and ensures precise shifting even on rough terrain. Thanks to built-in ON/OFF switch, wheel removal is easy too. The RD-RX825 is compatible with 11-34T and 11-36T 12-speed cassettes and supports Full or Semi-Synchronized shift modes, enhancing rider customization.
• Compact design with integrated wireless unit, charging port, and switch
• Fast and reliable shifting on rough terrain
• Adjustable chain stabilizer prevents chain slap
• Gravel-tuned clutch tension
• Switch stabilizer ON/OFF to match terrain: ON for gravel, OFF for smooth roads
• LED status indicator
• Battery indicator, pairing, adjust mode, etc.