Originally Posted by
cooker
Since the force you are noticing occurs between 180 and about 270 degrees and disappears at 270 degrees, it may be due to "pushing back" rather than "pulling up".
I was referring to the trend as power increases, not the shape of the 400W plot. Effective force at 270 degrees is effectively zero at 400W from a minimum of -50N at 100W. The trend appears more or less linear; it leads me to believe you get positive force above 400W for that particular individual rider tested.
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