Shimano Ultegra Di2 FD-R8150 2x12-Speed Front Derailleur

The Shimano Ultegra Di2 FD-R8150 front derailleur is an electronic front derailleur for 12-speed double drivetrains. It is suitable if you want to shift between chainrings using a control on the lever, without a gear cable.

• For 2x12-speed drivetrains, paired with HG 12-speed chains
• Handles 50-52-tooth front chainrings, with a capacity of 16 teeth
• Lightweight: 110 g for the anthracite, braze-on version
• Braze-on mounting, or clamp mounting with the SM-AD91 adapter sold separately
• Before ordering, check that your crankset and shifters are listed as compatible in the specifications

Technical specifications

• Weight: 110 g (anthracite, braze-on version)
• Tooth capacity: 16 teeth
• Maximum front chainring: 50-52 teeth
• Mounting: Braze-on; clamp mounting with SM-AD91 adapter (sold separately)
• Chainline: 44.5 mm
• Chainstay angle: 61-66°
• Compatible chains: HG 12-speed: CN-M8100, CN-M9100, CN-M7100, CN-M6100
• 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
• Power cable: EW-SD300-I

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.