Shimano GRX Di2 FD-RX815 2-/11-speed Front Derailleur

Item number: 71453

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Shimano GRX Di2 FD-RX815 2-/11-speed Front Derailleur - black/braze-on
Shimano GRX Di2 FD-RX815 2-/11-speed Front Derailleur - black/braze-on
Shimano GRX Di2 FD-RX815 2-/11-speed Front Derailleur - black/braze-on
Shimano GRX Di2 FD-RX815 2-/11-speed Front Derailleur - black/braze-on
  • 100 day return period
  • Online since 1998
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The GRX Di2 FD-RX815 front derailleur by Shimano gives with tyre clearance

The Shimano GRX Di2 FD-RX815 electronic front derailleur features a 2.5 mm outer chainline (compared to a conventional Shimano Road front derailleur), making it compatible with wider tyres and rearends. With its 17 tooth capacity it fits perfectly to the Shimano FC-RX810-2 crankset. Thanks to this front derailleur nothing stands in the way of the next Gravel adventure with a 2x setup.

Are you interested in the GRX series? Then come have a look at our Shimano Gravel theme world. You will find many more products there.

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Series: GRX Di2 R815
Application: Gravel, Cyclocross, City & Touring
Gearing: 2x (combined with 11-speed)
Chainstay Angle: 61-66°
Chainline: 46 mm
Chainring Size (max.): 46-50 teeth
Capacity: 17 teeth
Movement: down-swing
Mount: braze-on

Technical Information:

Outer Body Material: carbon (CFRP)
Inner Body Material: steel
Cage Material: steel
Number of E-Tube Ports: 1


- 11-speed Dual Control Di2 shift/brake levers
- only FC-RX810-2 and FC-RX600-11 cranks (chainline!)
- HG-EV 11-speed chains, HG-X11 chains


- more tyre clearance thanks to 2.5 mm outer chainline
- increased front capacity
- two joint bushings
- painted outer parallelogram, plated inside, chrome-plated cage plates
- E-Tube project ensures firmware updates


This product uses a technologically innovative, computerised shifting system based on the Di2 concept with the product designation SEIS (Shimano Electronic Intelligent System). The innovative shifting technology of the SEIS continues to be based on the Shimano Index System (SIS), whose outstanding shifting performance has proven itself over many years. The main difference between the systems is that the shifting operation is no longer carried out mechanically but electronically. The shifting process is carried out by simply pressing a button. No effort is required to shift gears, which has significant advantages as the rider always has a firm grip on the handlebars and can concentrate on riding without being distracted by the shifting. The shifting system allows precise and effortless shifting in all situations, even with cold hands or when the rider has fully exerted themselves. In addition, the shifting capacity can no longer be affected by dirty or stretched cables, as the shifting signal is transmitted electronically. The operating keys work in a similar way to mechanical dual-control levers, making it easy to get used to the new system.

E-Tube is a system platform for the Di2 concept (Digital Integrated Intelligence). E-Tube transmits interactive signals and supplies all electronic parts with power via " Plug & Play" connections. E-Tube is resistant to corrosion, expansion and frost and ensures low maintenance. It offers optimal flexibility for your bike. With E-Tube Project you can customise the settings of electronic components and update the firmware via Windows PC, tablet or smartphone. It provides quick and easy access to information on electronic components and provides an instant overview of system status.

Synchro Shift
Shift front derailleur and rear derailleur with only one shifter: The front derailleur detects the position of the rear derailleur and automatically performs front derailleur operations. This increases efficiency by minimising the time the chain runs on small chainrings. Programmable pattern for synchronized shifting: The rider determines when to shift the front and transmits commands to the rear derailleur.

Manufacturer Part Number:



- 1 x Shimano GRX Di2 FD-RX815 front derailleur


in stock 2 to 7 days up to 10 days Out of stock inform me
  • black/braze-on

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