Shimano, GRX Di2 RD-RX825, Rear Derailleur, Speed: 12, Cage: GS, Black, IRDRX825A

Description

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.