Shimano Dura-ace FD-R9250 DI2 Front Derailleur 12-SPEED

$419.95$664.95
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  • The FD-R9250 Dura-Ace Di2 Front Derailleur by Shimano - Slimmer, flatter, lighter.

    The FD-R9250 electronic front derailleur for the Dura-Ace Di2 2x12-speed road bike groupset from Shimano has a more compact design than its predecessor, and is therefore even more aerodynamic. Thanks to baffles made of lightweight aluminium, there is a weight advantage of approx. 15 grams compared to the Ultegra model. With a total capacity of 16 teeth, this allows large chainrings with a maximum of 50 to 54 teeth to be shifted, whereby the shifting speed has been increased enormously compared to the past. The front derailleur is compatible with a chainline of 44.5 mm and is designed for braze-on mounting. With the help of a suitable adapter, however, it is also possible to mount a clamp on the frame. It is connected to the battery via a cable, which in turn is also connected to the rear derailleur and, if applicable, the STIs. Of course, FD-R9250 has the proven Synchro and Semi-Synchro Shift function, which enables an automated interaction with the rear derailleur and thus makes shifting easier.


    SPECIFICATIONS

    Series: Dura-Ace Di2 R9250
    Application: Road, Triathlon & Time Trial
    Gearing: 2x (combined w/ 12-speed)
    Chainstay Angle: 61 - 66degree
    Chainline: 44.5 mm
    Chainring Size (max.): 50 - 54 teeth
    Capacity: 16-tooth
    Movement: down-swing
    Mount: Braze-on
    Compatibility: HG 12-speed chains



    TECHNICAL INFORMATION

    Outer Body Material: Aluminium
    Inner Body Material: Steel
    Cage Material: Aluminium
    Number of E-Tube Ports: 1


    COMPATIBILITY

    Power Cable: EW-SD300-I (1 x connection)
    Shift/Brake Lever: ST-R9250, ST-R9270, ST-R9160, ST-R9180, ST-R8150, ST-R8170, ST-R8060, ST-R7170
    Crank: FC-R9200 (34-50, 36-52), FC-R9200-P (34-50, 36-52), FC-R8100, FC-R8100-P, FC-R7100, FC-RS520
    Chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100
    Clamp Adapter: SM-AD91



    FEATURES

    - High shifting speed: 45 % faster than FD-R9150
    - Slimmer, flatter and lighter than predecessor
    - Front area reduced by 33 %, thereby less wind resistance
    - Connected to battery via cable
    - Fully- and semi-synchronous shift mode adjustable (via E-Tube or rear derailleur)
    - Firmware updates via E-Tube Project
    - 4 joint bushings
    - Outer parallelogram anodised
    - Inner parallelogram and baffles plated

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