• @jaap

    Could you help me?

    Just wish to check on the parts I still need to order for my Di2 groupset and you seem good at reading the Shimano flow charts which make my head meltdown

    Currently I have bought or have on order

    DA 9170 shifters and brake callipers
    Power2max rotor 3d cranks
    SM-RT800 disc rotors
    R8050 front mech
    R8050 rear mech (medium cage)
    CS HG800 11-34 cassette
    6700 Ultegra Di2 Front Derailleur Band adapter

    I wish to use 3t Aeronova bars with the bar end port

    On my still to buy list are
    EW-WU111 di2 ant bluetooth unit
    BT-DN110-1 battery
    EW-RS910 bar end port
    grommets
    cables

    Does this seem correct?
    Which cables should i be buying to configure all these items? cable length through bike to be confirmed by @coldharbour, but guidance on which sorts of cables (Y etc) would be great

    I already have the charger from R785 groupset.

    I think I will have to mount the battery inside a thomson seat post with packing foam and sticky tape.

  • You seem to have everything figured out for the most part, but you do need another SM-JC41 to connect everything up at your bottom bracket.

    Concerning wiring you could go for a Y-cable for your handlebars, using the EW-JC130-SM(or the -MM if you go for some wide bars). The 450mm goes into the left shifter, 50mm into the right shifter and 350mm into your EW-RS910.

    From there on you'll need a (long)cable from the EW-RS910 to (around) your bottom bracket into the SM-JC41. Depending on framesize a 1200mm would be nice.

    And then a cable from your R8050 to the SM-JC41, I guess something like 700mm to be safe.

    Of course another cable from SM-JC41 to EW-WU111. And one from EW-WU111 to BT-DN110-1. Both around 400mm.

    To sum it up:
    1x EW-JC130-SM
    1x EW-SD50 1200mm
    1x SM-JC41
    1x EW-SD50 700mm
    2x EW-SD50 400mm

    Hope it helps :)

  • Thank you so much for your help and insight

    1x EW-JC130-SM

    What length ought i go for for 44cm 3t aeronova bars?

    Also am assuming the 700mm cable is to the rear mech, what length ought i get to go from the junction box to the front mech?

    Cheers

    James

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