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  1. #1
    mmpotash
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    Di2 Programming Set-Up

    I've been riding my Ultegra 6870 Di2 about 10 times. The programed speed of rear shifting during multi-shift was too slow so I had it reprogrammed up to the next speed, one step below fastest. It still seems too slow. I'm trying to decide if I should try the fastest speed, maybe with the 3 gears per push. I have to take it in each time, a bit of a hassle.

    What setting do others like the most for the rear shifting!
    mmpotash

  2. #2
    bt
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    mine's full speed, whole cassette.

    It's definitely not too fast.

  3. #3
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    Just reading about some stuff on electric shifting trying to change my mind about a computerized bike...according to Shimano on bike rumor's site

    Fastest runs the risk of having the chain float on top of the cogs if you’re really hammering. That’s also why they don’t make it shift any faster
    Something to think about.

  4. #4
    Senior Member
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    Why do you need to bring it in? Are you using internal battery? With 6870 you should be able to simply download e-tube project and do all updates, programming, and diagnostics on your own. Unless that's only an option with internal battery and related charger set up. I have played withy multi shift and have found that the setting second from fastest has worked best for me.

  5. #5
    mmpotash
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    External battery requires the SM-PCE1.
    mmpotash

  6. #6
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    Quote Originally Posted by marcpotash View Post
    External battery requires the SM-PCE1.
    Ah bummer, is it pricey, worth getting? It seems a shame to have to go in for updates or changes not that you have to do it often but sometimes I like to just goof around with changes after charging.

  7. #7
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    The interface runs about $160, for most people not worth it because the only reason to use it after getting everything setup is updates...which are not frequent. I'm not sure how fast you're expecting shifts to be within the physical limitations of the system, I definitely have trouble calling the system slow. FWIW, clicking the shifter repeatedly is faster than multi-shifts even at the fastest setting.

  8. #8
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    Quote Originally Posted by bahula03 View Post
    FWIW, clicking the shifter repeatedly is faster than multi-shifts even at the fastest setting.
    Yup, multi-shift is there more as a convenience than anything. Easier and better to click the button multiple times if speed is the concern.

  9. #9
    RidingLikeCrazy! rangerdavid's Avatar
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    Quote Originally Posted by bt View Post
    mine's full speed, whole cassette.

    It's definitely not too fast.
    This
    *********************************

    Rangerdavid

    2009 Cannondale CAAD 9-6
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    Riding the mountains of North Carolina

    I do today what you don't , so I can do tomorrow what you can't

    "Absolutely imbecilic. But typical." ..... pcad

  10. #10
    mmpotash
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    I went with the fastest speed, multshift. While it isn't yet as smooth shifting as a mechanical, it is fast. As I get more used to the timing of the shift with easing on the pedals, it will smooth out. Single shifts are great!
    mmpotash

  11. #11
    Senior Member lennyparis's Avatar
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    On Dura Ace i went with middle speed and 2 cog shift if hold down button
    Seems perfect for me and much better than mechanical

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