Product Description
The Shimano GRX FD-RX820-F front derailleur is designed for smooth, light-action front shifting on modern 12-speed gravel and mixed-surface drivetrains. Built with Shimano’s Toggle Link construction and an integrated cable tensioner, it offers easier setup and more natural shifting performance for riders who want reliable front shifts across varied terrain.
This braze-on front derailleur is designed for double cranksets and uses a 2.5mm outboard chainline compared with conventional road front derailleurs, helping provide greater tire clearance for gravel and mixed-terrain bikes. It supports outer chainrings up to 48T and a 17T derailleur capacity for wider front gearing range.
This derailleur is in take-off condition and may show light handling marks, small scuffs, or minor signs of installation/removal. Any wear present is expected to be cosmetic only unless otherwise noted.
Key Features
- Genuine Shimano GRX FD-RX820-F front derailleur
- Designed for 12-speed gravel and road drivetrains
- For double crankset setups
-
Braze-on mount
- Smooth, natural front shifting
-
Toggle Link construction for lighter shift action
- Integrated cable tensioner for easier setup
-
+2.5mm chainline vs conventional road front derailleurs for wider tire clearance
- Supports a wider 17T front chainring range
- Routing options include bare shift cable and integrated cable housing stop
- Designed for 47mm chainline
- Supports outer chainrings up to 48T
- Take-off condition
Specifications
- Brand: Shimano
- Series: GRX
- Model: FD-RX820-F
- Product Type: Front Derailleur
- Drivetrain Speeds: 12
- Double or Triple: Double
- Front Derailleur Clamp: Braze-on
- Front Derailleur Cable Pull: Bottom Pull
- Front Derailleur Style: Topswing
- Max Ring Size: 48T
- Derailleur Capacity: 17T
- Front Derailleur / Shifter Compatibility: Shimano Road
- Chainline: 47mm
- Chainstay Angle: 63-66 degrees
- Weight: 96g
- Manufacturer Part Number: IFDRX820F
Compatibility
Compatible with:
-
Shimano 12-speed GRX / road drivetrain systems
- Shimano road front shifters
-
Double cranksets with outer chainrings up to 48T
- Frames with a braze-on front derailleur mount
- Setups using 47mm chainline
Please confirm mount type, chainring size, chainline, and drivetrain compatibility before purchase.
Included
- One Shimano GRX FD-RX820-F front derailleur
Warranty and Notes
- Take-off condition
- May show slight handling marks or small cosmetic scuffs from installation or removal
- Includes only what is shown or described
Condition
- Take-off
- May show minor cosmetic marks from handling or removal
- No known structural damage
- Genuine OEM product
- Includes only what is shown or described
