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Description
Bringing the proven precision and reliability of Shimano electronic technology to your gravel or adventure bike setup, the GRX 815 Di2 Front Derailleur will deliver crisp and fast gear shifts to move your chain smoothly between the inner and outer chainrings at the push of a button. Whether riding with a tight chain up a steep gradient or descending a fast gravel road, the gear shifting remains predictable and consistent.
Use Shimano's E-TUBE platform to wirelessly check that the system is performing as it should and even customise the setup with a PC, tablet or smartphone. You can check for firmware updates, diagnose errors and ensure that you are on top of maintenance so that every time you start a new adventure your drivetrain is in the best condition, ready to tackle anything.
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Important Update for Our US Customers
We regret to inform you that due to ongoing challenges related to current US tariffs, shopping on Sigma Sports is temporarily unavailable for customers based in the United States.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our US community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
If you require any further assistance, please reach out to the customer services team
— The Sigma Sports Team