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eTap rear mech missing shifts

step83step83 Posts: 4,028
edited April 2019 in Workshop
Rather confusing situation at the weekend, a few times in the ride the rear mech simply stopped responding, on my Wahoo I can see the gear its in, its always around mid cassette, sometimes you can bring it back to life shifting up then back down, other times it just goes to stops responding for a while then comes back an catches up with all the missed shifts.
Swapped the batteries front to back, an changed the shifter ones at a random co-op again same issue, front mech works fine.

Is it worth de pairing the mech an shifters, then trying again? I can't see any obstructions and when its not responding you cant see it try to move either.

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