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.
Specs:
Max Front Difference: 17T
Maximum Cog: 36T
Minimum Cog: 11T
Primary Color: Black
Cage: GS
RD Capacity: 40T
RD Spring Type: Shadow Plus
Speed: 12