Rear Derailleur Shimano GRX Di2 RD-RX825 12s Black

Shimano GRX Derailleur (DI2 Spec) RD-RX825 12-Speed Compatible With Direct Mount

The Shimano GRX Di2 12-speed derailleur features an integrated wireless connectivity unit and charging port, ensuring fast and reliable shifting for mixed terrain riding and easy recharging. The integrated Shadow RD+ technology prevents chain slap and guarantees precise shifting even on rough terrain.

Thanks to the built-in On/Off switch, removing the wheel is also easy. The RD-RX825 is compatible with 12-speed cassettes of 11-34T and 11-36T and supports Full or Semi-Synchronized shifting modes, enhancing rider customization.

Compact design with integrated wireless unit, charger, and switch

• Fast and reliable shifting on challenging terrain.

• Adjustable chain stabilizer prevents chain drops.

• Shimano Shadow RD+

• Clutch tension adjusted for gravel.

• On/Off stabilizer switch to adapt to terrain: On for gravel, Off for smooth roads. LED status indicator.

• Battery indicator, pairing, adjustment mode, etc.

• Largest sprocket: Max. 36T/Min. 34T

• Smallest sprocket: Max. 11T/Min. 11T

• Total capacity: 40T