he Shimano Ultegra RD-6770 Rear Derailleur is an electronic Di2 component designed for Shimano's 10-speed road drivetrain generation.
Key Features:
- 10-speed Di2 design supports compatible Shimano electronic road drivetrains.
- Electronic shifting delivers precise gear changes through the compatible Di2 system.
- Maximum low sprocket size is 28T.
- Minimum low sprocket size is 23T.
- Maximum top sprocket size is 12T.
- Supports a maximum front chainring difference of 16T.
- Total drivetrain capacity is 33T.
- Intended for compatible legacy 10-speed systems rather than newer 11- or 12-speed Di2 drivetrains.
Who is it for?
For road cyclists and mechanics maintaining a compatible Shimano Ultegra 10-speed Di2 drivetrain who need a replacement rear derailleur.
Specifications may differ from the photo and are subject to change without prior notice.
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