Shimano GRX Di2 FD-RX815-F 2x11S braze-on front derailleur

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.

Features

• Chainline +2.5 mm vs. conventional road FD.
• Wider range front gearing.
• 17T front range.
• SEIS Shimano Electronic Intelligent System.

Technical specifications

• Series: GRX DI2.
• Front speeds: 2.
• Rear speeds: 11.
• Compatible chain: LINKGLIDE, HG 11-speed.
• Down swing.
• Mount brazed-on.
• Chain line (mm): 47.
• Chainstay angle (deg.): 61-66.
• Top gear teeth: 46-48T.
• Total capacity: 17T.
• Link bushings: 2.
• Firmware update by E-TUBE PROJECT.
• SD50 port (pcs): 1.
• SD300 port (pcs): 0.
• SD50 connector (pcs): 0.
• SD300 connector (pcs): 0.

Technologies

E-Tube

The E-Tube platform's “Plug & play” and D-Fly wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and Shimano Steps components with a PC, tablet or smart phone.

Benefits & Features

• Wirelessly customize functions like Shimano Synchronized Shift over Bluetooth® while out on a ride.
• Automatically checks for firmware updates on each startup to ensure all components are running the latest version.
• PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process.
• Beautiful visualization of your real-time Shimano Steps riding data on your smartphone.
• Advanced all-weather design resists rusting, stretching, and freezing.