I hope this wasn't mentioned earlier, I skipped a page or two...
As an experiment we make a pedal with the stack height of 10 meters. With the pedal kept perfectly horizontal, you rotate the cranks and make a perfect circle 10 meters in the air above the BB center.
EDIT: What I was trying to emphasize, if stack height contributes to eccentricity, symmetrical or not, wouldn't a 10 meter stack amplify the effect? I've been wrong before.
Last edited by venturi95; 11-17-25 at 06:01 PM.