A built, banked corner. In a berm the pedals stay level and you pump into the wall — only flat corners without banking call for a dropped outside foot.
The question \"outside foot down or pedals level?\" is settled by one condition: does the corner supply support, or do you have to create it? In a berm the wall carries you — pedals level, push actively into the bank through the middle of the turn, and you fire out of the exit as if off a ramp. In a flat corner without banking you drop the outside pedal all the way and stand on it, pressing the tyre into the ground. On top of that, in both cases, comes bike-body separation: you lean the bike further into the turn than your torso. Typical errors are braking mid-corner and entering a berm high with too little speed, which slides you down the wall. What often goes unnoticed: cornering crashes almost always go sideways, where shoulder and collarbone are the most frequent injury region.