Shimano Ultegra Di2 R8150 2x12-speed front derailleur Braze-On Mount

The Shimano Ultegra Di2 FD-R8150 is an electronic front derailleur for road bikes with a 2x12-speed drivetrain. It's right for you if you want fast, precise shifting on frames with a braze-on mount.

• Electronic Di2 shifting for 2x12-speed drivetrains, with no mechanical cable to adjust
• Lightweight: weighs 110 g, useful if you want to keep the bike's weight down
• Handles a 16-tooth difference between the two chainrings
• Direct braze-on mounting to the frame, with down-swing geometry
• Check the frame: if it doesn't have a braze-on mount, the SM-AD91 clamp is required and sold separately

Technical specifications

• Model: Shimano Ultegra Di2 FD-R8150
• Drivetrain: 2x12-speed
• Mounting: Braze-on; SM-AD91 clamp sold separately for frames without a braze-on mount
• Geometry: Down-swing
• Chainline: 44.5 mm
• Capacity: 16 teeth
• Compatible cranksets: FC-R8100, FC-R8100-P, FC-R9200, FC-R9200-P, FC-R7100, FC-RS520
• Compatible shifters: ST-R8150, ST-R8170, ST-R8060, ST-R9250, ST-R9270, ST-R9160, ST-R9180, ST-R7170
• Compatible chains: HG 12-speed: CN-M8100, CN-M9100, CN-M7100, CN-M6100
• Di2 cable: EW-SD300-I (1 x connection)