Shimano GRX Di2 RD-RX827 Rear Derailleur 12 Speed Takeoff thoroughly degrease your chain before

thoroughly degrease your chain before the first application

and decrease your stack height for the most aerodynamic fit on your bike

Topstone Carbon (2022)

4mm inner liner may not be compatible with all frames and components

Non Drive Side Bearing: Enduro ABEC-3

Shimano GRX Di2 RD-RX827 Rear Derailleur 12 Speed Takeoff thoroughly degrease your chain beforeWith components specifically designed for 1x12 speed drivetrain systems, the GRX series is celebrating its debut in the completely wireless shifting segment. The focus is on the RD RX827 rear derailleur, which is based on the wireless models of the XTR M9250 series. The 1 speed concept is complemented by the BL RX825 brake lever and the WH RX810 wheels. Equipped like this, gravel athletes can experience what ultimate reliability means on any terrain