• ok, i have assembled shifters (9170) front mech (6870) and rear mech (grx 815) over the last few months. As I understand it, I need

    EW-JC130mm (will sit in the down tube)
    EW-RS910 (bar end)
    SN-BCR2
    BT-DN110 (seatpost)

    Can anyone confirm that a) those bits all work together and b) I'm not missing anything?

    thanks!

  • You need internal and external junction boxes and 2 cables for shifters the rest sounds fine

  • No need for an external junction box - the 910 bar end shifter does that job. You will need an internal A junction to tie everything together, and probably a Y cable for the bars if you're using the bar end junction box. Or a soldering iron.

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