Aluminum body

this new iteration builds on these principles while fitting more bikes and providing refined adjustability for the rider

which means more consistent chain riveting and greater overall strength

built and tested in the USA

Weight plus or minus 5%

Shimano GRX DI2 FD-RX815-F Braze-ON 2x11 Front Derailleur 17T Compatio_Enriched Aluminum bodySHIMANO GRX DI2 Front Derailleur Gravel 2x11 speed The 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. Wider tire clearance Chainline +2. 5 mm vs. conventional road FD Wider range front gearing 17T front range