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  1. #1
    mtbr member
    Join Date
    Jan 2009

    Want to upgrade to XT Di2 - can I keep current cassette/chain?

    I Currently have a SRAM GX 2x10 setup with a Shimano 11/40 cassette (wolftooth 40t cog). I'm thinking of upgrading to the 2x XT Di2 groupset. I know I would need the new Front and Rear Der, junction box, and shifter but could I use my current chain and cassette? Any other parts that I'm missing? Come to think about it, when I look at each individual part on consumer websites, I have not seen the battery or wiring - is that included with the junction box? Thanks in advance for any advice!

  2. #2
    mtbr member
    Join Date
    Nov 2005
    edit: total brainfart on my part.
    Last edited by westin; 11-20-2016 at 08:32 AM.

  3. #3
    R.I.P. DogFriend
    Reputation: jeffj's Avatar
    Join Date
    Jan 2004
    XT Di2 is 11 speed only, so your 10 speed cassette will not work. Check to make sure you can use an 11 speed cassette on your rear wheel too.

    Also, the display acts as the junction box along with the battery. You can run each of the derailleur wires to the battery, and then a single wire from the battery to the display, and another single wire from the display to each shifter. No junction needed. You can also charge the battery via the display.

    Getting the right length wires can be challenging, especially the wires that go from the display to the shifter pids because they double back to the shifter and then route along the handlebar so they probably need to be longer than you would think they do.

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