• Ok so my list so far comprises of:
    R785 STIs
    Front Derailleur
    Rear Derailleur
    Battery (seatpost type)
    Junction Box A (3 port)
    Internal cableset (with Junction Box B included)
    Di2 Grommet set
    Charger

    Is there anything i'm missing?
    The only bit i'm confused about is whether all the cables i need are in the cableset (http://www.ribblecycles.co.uk/shimano-di2-cableset/#pid=19896) as there's no mention of the two STI-Junction A cables...i think you need these separately?

  • Dont get a cable 'set' just buy cables in individual lengths and junction box B.
    You need 2 350mm cables from shifters to junction box A at stem.
    A long cable from junction box A to B.
    FD to Junction box B
    RD to junction box B
    Battery to junction box B
    Small zip ties around cables to stop them rattle in the frame.
    Shimano bleed kit and mineral oil.

  • Ah ok, i did wonder. So from a bit of measuring up i need

    2 x 350mm (thanks @amey)
    ~750mm downtube a-b
    ~350 FD - Junction B
    ~550 RD -Junction B

    Also do you need a significantly longer Battery - Junction B cable so you can remove the seat post?

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