The Shimano GRX Di2 FD-RX815 front derailleur offers quick and smooth front shifting and extra front tire clearance for gravel bikes.
- SEIS (Shimano Electronic Intelligent System)
- An additional 2.5mm is added to the chainline to provide more room for wider tires (up to 42mm)
Top Gear: 46-50T
Mount Type: Braze-on