Shimano GRX Di2 Front Derailleur (FD-RX815) Groupe Over 10 years of aero

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Shimano GRX Di2 Front Derailleur (FD-RX815) Groupe Over 10 years of aeroThe SHIMANO GRX RX815 DI2 front derailleur delivers quick and smooth front shifting even under high pedaling torque. It's designed for a wider, 17T front range and it has programmed chain guide trim settings and can be used in full or semi SHIMANO SYNCHRONIZED SHIFT modes. Specifications Wider tire clearance Chainline +2. 5 mm vs. conventional road FD Wider range front gearing 17T front range Mfr Claimed Weight TBC