• Out of the blue on a ride one of the two paddles on my 12 speed ultegra di2 right shifter stopped shifting - the larger of the two as indicated in the photo. The other paddle still works fine as does the button in the hood. I’ve owned it from new and it’s only done about 1500km and never been crashed/dropped. It no longer makes the clicking noise when you press it. Is this caput or am I missing something really obvious?

  • It no longer makes the clicking noise when you press it

    That's typically a foreign object preventing full travel of the paddle. You might be able to blow it out.

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