Shimano GRX 825 Di2 12-Speed Rear Derailleur
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 the 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-Synchronised shift modes, enhancing rider customisation.
Features
- Compact design with integrated wireless unit, charging port, and switch
- Fast and reliable shifting on rough terrain
- Adjustable chain stabiliser prevents chain slap
- SHIMANO SHADOW RD +
- Gravel-tuned clutch tension
- Switch stabiliser ON/OFF to match terrain - ON for gravel, OFF for smooth roads
- LED status indicator
- Battery Indicator, pairing, adjust mode, etc.
- Top sprocket: Max. 11T/Min. 11T
- Low sprocket: Max. 36T/Min. 34T
- Total capacity: 40T
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