• Sagan said di2 was too easy to shift accidentally.
    Mechanical takes a more deliberate action but di2 can switch just by touching the lever.

  • I can see that.
    When your hands are numb from cobbles, don’t want to accidentally shift down on your front derailleur, and then have a chain drop when you’re trying to shift back up on a critical section.
    I think they still favour double chainsets, not because they use the smaller ring, just so that the chain can drop onto it rather than off the chainset entirely.

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