12-speed Di2 New User Guide
Just bought a new 12-speed Di2 bike? This page explains what the buttons do, how to charge, and what synchronized shfit does.
Front Derailleur
105 FD-R7150
The FD-R7150 is Shimano's new 105 12 speed Di2 Front Derailleur, used with the semi-wireless R7150 groupset released in 2022.
It works with the BT-DN300 battery and EW-SD300 Electric Wire.
Since this is essentially the older FD-R8050, it has a top limit bolt. To set up the front derailleur correctly, take a look at my page on setting R7150 105 front derailleur limits.
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Wireless, but wired
So the new Di2 components are wireless but still have E-Tube Ports. What gives?
The new Di2 system is only semi-wireless, meaning that the derailleurs are still plugged into the battery. The shifters send their shift commands wirelessly, but Ultegra and Dura-Ace shifters can be wired to the rest of the system to increase battery life.
Compatibility
This 105 Di2 front derailleur is meant to be used with a 12-speed rear derailleur. It is compatible with all 12-speed Di2 road rear derailleurs.
Specifications
- Model code: FD-R7150
- Series: 105 (R7150)
- Weight: 142g
- Speeds: 12
- SD300 ports: 1
- Total capacity: 16T
- Chain line: 44.5mm
- Top gear teeth: 50-52T
Related components
View all componentsRelated pages
Set up 105 Front Derailleur limits (FD-R7150)
Read how to set up your 105 12-speed Di2 Front Derailleur - FD-R7150.
Manuals & other documents
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