Front Derailleur

Front Derailleur

Ultegra FD-R8150-F

The FD-R8150 is Shimano's new 12 speed Di2 Front Derailleur, to be used with the semi-wireless R8150 groupset released in 2021.

It works with the BT-DN300 battery and EW-SD300 Electric Wire.

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, but the shifters send their shift commands wirelessly.

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Backward compatibility

This front derailleur is meant to be used with a 12-speed rear derailleur. Just like when Di2 made the jump from 10 speed to 11 speed, this new front derailleur won't work with older 11-speed derailleurs.


  • Model code: FD-R8150-F
  • Series: Ultegra (R8100)
  • Weight: 116g
  • Speeds: 12
  • SD300 ports: 1
  • Total capacity: 16T
  • Chain line: 44.5mm
  • Top gear teeth: 50T - 52T

Related components

View the Shadow Rear Derailleur (12 speed) (RD-R8150)


Shadow Rear Derailleur (12 speed)

View the Internal Battery (BT-DN300)


Internal Battery

View the Rim Brake Dual Control Lever (Wired) (ST-R8150)


Rim Brake Dual Control Lever (Wired)

View the Disc Brake Dual Control Lever (Wireless) (ST-R8170)


Disc Brake Dual Control Lever (Wireless)

View the 2x12 Crankset (FC-R8100)


2x12 Crankset

View the Electric Wire / E-Tube cable (EW-SD300)


Electric Wire / E-Tube cable

View the Satellite Tops Shifter (12 speed) (SW-RS801-T)


Satellite Tops Shifter (12 speed)

View the Satellite Drops Sprint Shifter (12 speed) (SW-RS801-S)


Satellite Drops Sprint Shifter (12 speed)

Related pages

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