Quote Originally Posted by Lisa S.H.
I think it happens when people unclip one foot in preparation to stopping, but then when the bike stops it unexpectedly tips over to the OTHER side that is still clipped in.
Exactly what happened to me. Unclipped my left foot, eased on the brakes, shifted my weight forward off the saddle with the left foot extended and ready to hit the ground, but apparently leaned my shoulders a bit to the right and caused the bike to tip that way instead of to the left. I've learned to be much more conscious of how I'm shifting my weight as I move off the saddle, whether I'm clipped in or not.