Front Derailleur Shimano GRX Di2 FD-RX815
Shimano GRX Di2 front derailleur for gravel bikes, offering precise electronic shifting and a wider chain line for modern setups.
Overview
Front Derailleur Shimano GRX Di2 FD-RX815
The SHIMANO GRX RX815 Di2 front derailleur is engineered for gravel and adventure riding, delivering fast and smooth electronic shifting even under high pedaling loads. The GRX series is purpose-built for wider gearing ranges and modern gravel frame geometries, ensuring reliability in demanding conditions.
With a chain line that is +2.5 mm wider than standard road front derailleurs, it improves tire clearance and gravel compatibility. The 17T front gear capacity supports wider chainring differences. The FD-RX815 is compatible with full and semi-synchronized SHIMANO SYNCHRONIZED SHIFT modes and can be customized and updated via the E-TUBE Project software.
- Group: SHIMANO GRX Di2
- Model: FD-RX815-F
- Application: Gravel / Adventure
- Gearing: 2x11-speed
- Mount type: Braze-On
- Shifting type: Down Swing
- Chain line: 46 mm (+2.5 mm)
- Chain stay angle: 61–66°
- Max chainring: 46–50T
- Total capacity: 17T
- Compatible chain: HG-EV 11-speed / HG-X11
- E-TUBE port: 1
- Firmware updatable via E-TUBE
- Weight: approx. 135 g
