E8000 sudden drag at times

kidsnare

Member
Apr 30, 2021
31
21
Germany
I read through the forum but couldn't find an answer.
I have an E8000 in my SC Heckler 2020. So far I'm quite happy with it, but sometimes while pedaling uphill I feel a sudden drag or loss of power, as if I shifted down from Trail to Eco mode. I noticed that it mostly happens when I'm going into a tight corner uphill, where the weight distribution on my pedals changes a bit or I stop pedaling for a second while doing the turn. Only if I completely stop for a second or two, the motor feels normal again and the drag is gone.

Also when that happens and I'm going to a higher speed, I feel the same odd surging feedback as described here:
Shimano STEPS E8000 first ride review
While the power delivery was smooth for the most part, there was some very odd surging feedback through the cranks when soft-pedalling or just under the 25kph speed limit. For some reason, the system would cut in and out in a fairly jerky manner, usually as you rotated the cranks through the dead spot.

Does anyone know a fix for this issue?
 

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