ST2 Motor "Judder"

did NOT expect it on a new ST2s.

@Stromer2work , there were some issues with ST2 powercables but it was not systemic and it has been resolved since then.

I had this problem too and @lilrich helped me get the bike back in shape in no time. When it comes to Stromer issues, Rich is by far more experienced and when I did the cross -country ride on my ST2-S, he was with me and it was very reassuring. As Rich mentioned, it's power cables sending wrong signal to the hall sensors. TIP: now when you get it changed under warranty, install rear tire liners or better tubeless Schwalbe Almotions on them. Most of these "stutter" issues arise because of people trying to fix a flat and not aligining the rear thru axle properly after fixing a flat. So, if you can get the liner or some kind of puncture resistant stuff, the better it is.

Coincidentally, exactly 2 years ago on Aug 2nd 2016, me and Rich were crossing the Badlands national park and I was on my ST2-S. I am sure he can help you out as well.


Aug 2nd - Badlands.JPG Rich @Badlands.JPG
 
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