Hello, I am having a problem that I don't know if it is mechanical or computer related.
When I pedal, the resistance suddenly drops to zero, for a fraction of a second, sometimes with several successive jolts.
It is as if the belt is not tensioned, or the drive switches to freewheel.
It may be a wear of the central part on the flywheel, or a problem with a magnetic sensor...
Has anyone encountered this same problem, or have any ideas as to what might be causing it ?

Mieux vaut tard que jamais !