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Just to be complete, or for those who have the same problem, it was a broken PAS magnet ring that caused the problem. See pics below. Breaking of the magnet ring was (maybe) caused by a ball of the bearing coming in between the main cog and the magnet ring, see pics, they speak for their selves...

I swapped the motor out with another BBSO2 from another bike yesterday. Combination works fine again. So probably it's something in the motor itself. Controller or sensor or something. Ideas very welcome!

Hello Sedgeway, it seems that I have the same problem since yesterday. When I stop pedaling, motor keeps on running. Same when I throttle, when I stop throttling, motor keeps on running. Motor stops correctly when I'm activating the break sensor. When motor keeps on running, motor speed reacts...

In addition to previous question, maybe also for HarryS. I have 2 battery packs 13s5p. One of them dropped from the holder 3 times, result of not locking the battery and very, very bumpy streets on Curacao. Power and capacity of the battery were much more low as a result. After charging I...