(Stupid Speculation) - When will Di2 trickle down to 105?

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Comments

  • Giraffoto
    Giraffoto Posts: 2,078
    first I wrote:
    It'll have to go some to improve on the current 5800 105 - there's not much more effort than pressing a button with it.
    and then Bar Shaker wrote:
    Just to clear up a couple of things...
    . . .
    It is not just an improvement on 105, Giraffoto, it is in a different league. It isn't about the effort in pressing the button, it is all about giving the perfect shift every time.
    . . .

    I obviously have a case of "everything on my shiny new bike is perfect". :D

    So is Di2 fit-and-forget? (Assuming you've fitted it right in the first place)
    Specialized Roubaix Elite 2015
    XM-057 rigid 29er
  • chris_bass
    chris_bass Posts: 4,913
    In theory it should be, it auto trims so you will always get perfect shifting. No more gear indexing, no sticky cables, you can swap wheels and it should auto correct to the new cassette.

    The only thing that is holding me back is that if something goes wrong on my bike i'd have a pretty good go at fixing it, if something goes wrong with the electronics I'd have no idea.
    www.conjunctivitis.com - a site for sore eyes
  • nferrar
    nferrar Posts: 2,511
    As has been said, my money's on it going to 105 level when Dura-Ace (and likely Ultegra) goes wireless in a couple of years from now.
  • CiB
    CiB Posts: 6,098
    Chris Bass wrote:
    In theory it should be, it auto trims so you will always get perfect shifting. No more gear indexing, no sticky cables, you can swap wheels and it should auto correct to the new cassette.

    The only thing that is holding me back is that if something goes wrong on my bike i'd have a pretty good go at fixing it, if something goes wrong with the electronics I'd have no idea.
    Don't normally bother with things like this, but unless Di2 has changed in a big way this isn't true and shouldn't be relied on. It doesn't auto-correct for a new cassette - it relies on the upper & lower limit screws and the indexing being set correctly for precise and correct changes. Changes involve a slight overshift; if the limit screws aren't correct esp into 1st it can't overshift so doesn't give the ideal change and worse, the rear mech can continue to try the overshift and in theory flatten the battery, if for example it's left in 1st overnight. Auto-trim on the front mech works once the limit screws are correctly adjusted and the rear mech is correctly indexed.

    I'm willing to stand corrected if the newer versions have changed but mine is 3 years old and doesn't do this auto-correct for a new cassette. It is a trivial job to reindex on the move, which is neat.

    Re things going wrong, the worse that can happen is that it stops working and you're stuck in a gear. Absolute failure is v rare so holding back for that reason is a bit pointless.
  • Manc33
    Manc33 Posts: 2,157
    Are there any hard facts or data to support Di2 being advantageous? Getting there faster is the obvious one, I know Di2 is lighter, but I also know it can malfunction. If you collect together all the pro's and con's can it justify the added cost for someone that is never racing? If you're racing have you "got to" have it or you might not win?

    Its like people that go out and buy a Mitsubishi Evo X with 180 MPH on the dial and racing harnesses in it to go shopping at the weekend. :roll: I knew a guy that bought one and he had less than a ten mile journey to work, the Evo was doing six miles to the gallon so he sold it.
  • chris_bass
    chris_bass Posts: 4,913
    Manc33 wrote:
    Are there any hard facts or data to support Di2 being advantageous? Getting there faster is the obvious one, I know Di2 is lighter, but I also know it can malfunction. If you collect together all the pro's and con's can it justify the added cost for someone that is never racing? If you're racing have you "got to" have it or you might not win?

    Its like people that go out and buy a Mitsubishi Evo X with 180 MPH on the dial and racing harnesses in it to go shopping at the weekend. :roll: I knew a guy that bought one and he had less than a ten mile journey to work, the Evo was doing six miles to the gallon so he sold it.

    A pretty good review here

    http://road.cc/content/review/132391-sh ... d-groupset
    This may be of interest to someone who struggles setting up their front mech, do you know anyone like that?

    "The auto-trim feature on the front derailleur is one of the best features of the entire groupset, and avoids chain rub that can't always be eliminated on a mechanical groupset."
    www.conjunctivitis.com - a site for sore eyes
  • iPete
    iPete Posts: 6,076
    Manc33 wrote:
    Are there any hard facts or data to support Di2 being advantageous? Getting there faster is the obvious one, I know Di2 is lighter, but I also know it can malfunction. If you collect together all the pro's and con's can it justify the added cost for someone that is never racing? If you're racing have you "got to" have it or you might not win?

    Its like people that go out and buy a Mitsubishi Evo X with 180 MPH on the dial and racing harnesses in it to go shopping at the weekend. :roll: I knew a guy that bought one and he had less than a ten mile journey to work, the Evo was doing six miles to the gallon so he sold it.

    Life's too short, give me the Evo X over a Nissan Micra.
    My little hot hatch largely goes to the supermarket and back but it sure as hell puts a smile on my face.

    Bottom line, if you can afford Di2 and it puts a smile on your face, go for it.
  • Manc33
    Manc33 Posts: 2,157
    Chris Bass wrote:
    This may be of interest to someone who struggles setting up their front mech, do you know anyone like that?

    It only takes me longer because I'm aiming for perfection. :P

    That Al Pacino coach thing where he talks about inches springs to mind.
  • DKay
    DKay Posts: 1,652
    Manc33 wrote:
    Are there any hard facts or data to support Di2 being advantageous? Getting there faster is the obvious one, I know Di2 is lighter, but I also know it can malfunction. If you collect together all the pro's and con's can it justify the added cost for someone that is never racing? If you're racing have you "got to" have it or you might not win?

    Its like people that go out and buy a Mitsubishi Evo X with 180 MPH on the dial and racing harnesses in it to go shopping at the weekend. :roll: I knew a guy that bought one and he had less than a ten mile journey to work, the Evo was doing six miles to the gallon so he sold it.

    Rather than start off another 'I don't see the point of Di2' discussion, just read the one below. Di2 isn't about 'getting there faster'. This is a common misconception of anyone who's never used it for a decent length of time.

    viewtopic.php?f=40042&t=13007044
    N
    N+1

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