Shimano GRX FD-RX815 Di2 Down-Swing 2x11-Speed Front Derailleur

The Shimano GRX FD-RX815 front derailleur brings the precision and speed of Di2 electronic shifting to mixed-terrain cycling. It delivers smooth, accurate gear changes even under high pedaling torque, ensuring optimal performance on every ride.

Wider Front Range Compatibility: Engineered to accommodate a 17T front chainring range, the RX815 offers enhanced versatility for gravel and adventure riding. Its design ensures a perfect balance of gear ratios for challenging climbs and speedy descents.

Programmed Chain Guide Trim: The derailleur features automatic chain guide trim settings, which eliminate the need for manual adjustments. This ensures consistent shifting and reduces the chance of chain rub, even across extreme gear combinations.

Seamless Integration with Synchronized Shifting: Designed to work with Shimano’s Synchronized Shift modes, the RX815 can be set for either full or semi-automatic shifting. This innovative technology optimizes front and rear derailleur communication, simplifying gear management.

With durability and reliability at its core, the GRX RX815 is built to withstand the demands of gravel riding. Whether you’re tackling rough terrain or long endurance rides, this derailleur delivers unmatched performance and control.

• Model No: FD-RX815-F
• Series: GRX
• Color: Series Color
• Front Speeds: 2
• Rear Speeds: 11
• Compatible Chain: Linkglide, HG 11-speed
• Action|Down Swing: Yes
• Mount|Brazed-On: Yes
• 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: Yes
• SD50 Port (Pcs): 1
• SD300 Port (Pcs): 0
• SD50 Connector (Pcs): 0
• SD300 Connector (Pcs): 0
• Average Weight: 135 g