Shimano Front Derailleur GRX RX815 Di2
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The Shimano GRX RX815 Di2 front derailleur is specifically designed for the demands of modern gravel riding. Thanks to advanced electronic Di2 technology, you can shift incredibly fast and precisely in all conditions, even under heavy loads during a steep climb on unpaved terrain. The derailleur is developed with a wider chainline of +2.5 mm compared to regular road bike components, which provides extra clearance for wider tires that are essential for comfort and grip on challenging paths.
Reliability is central to this component from the GRX series. The RX815 features an integrated automatic trim function, ensuring the chain never rubs against the cage, regardless of the gear you're in. This guarantees a quiet drivetrain and reduces wear on your equipment. The robust design is resistant to mud, dust, and vibrations, making it the ideal choice for endurance rides and bikepacking adventures where equipment failure is not an option.
The seamless synergy between electronic control and mechanical precision ensures an intuitive riding experience on any type of surface. This front derailleur is fully optimized for 2x11-speed systems and offers a wide range for various terrains. Whether you're participating in a gravel race or exploring a remote route, the GRX RX815 delivers the consistent performance needed to confidently venture off the beaten path.
Specifications
| Number of gears | 11 |
| Mounting / Attachment | Brazed-on |
| Suitable for | Shimano |
| Chain | 46-50 teeth |
| Chainline | 2.5 mm more than conventional road front derailleurs |
| Color | BLACK |
| SKU | IFDRX815F |
| Barcode | 4550170443160 |
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Our Reviews
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Once again a good experience. Ordered a Sram Code RS brake set. Delivered quickly, unfortunately the handlebar clamps were forgotten but delivered without issues afterwards. Also the MMX.
JoostUpdated on Apr 14, 2026 -
Bought a cool Hollowgram R-SL50 wheelset for my gravel bike from Woest Sport at a great price. The rear wheel needed to be re-spoked according to the Cannondale Ai principle, which they did very profes...
HansUpdated on Oct 5, 2025 -
Today, after some Googling, I went to Woest for new running shoes. I've been running in Asics Nimbus for over 20 years, and now, after a tip from a colleague, I decided to try Hoka. I was perfectly helped by the staff.....
HenkUpdated on 16 Mar 2023
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