Shimano GRX Di2 Front Derailleur (FD-RX815) Groupe T20 and T25

T20 and T25

Over 10 years of aero product development with a focus on real-world performance has led us to tire development

Hardened steel for maximum stability

The Cobra9 SemiPro has been designed for further customisation by bike fitters

Bontrager™ (with adapter)

Shimano GRX Di2 Front Derailleur (FD-RX815) Groupe T20 and T25The 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