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This sounds like what happened to mine, one of the magnets for the speed sensor came loose and killed the magnetic speed sensor. rampa-sensor.jpg I stripped my unit and I'm trying to replace the (very) small surface mount magnetic senssor, which was attached to that green printed circuit board in th...

I tried to post a detailed reply to this thread by it looks like my post has been censored by the moderators.

I have to agree with the general findings. The screenshot below shows a step test done in myEtraining, 40seconds at 120w then 30 seconds at 220, you can see the overshoot in power to 288w even though the cadence is quite steady (I was trying to hold around 90). You can feel this very obvious power i...