I've searched a bit and can't find anything on this. I'm considering going clipless and I was wondering where your feet take the most force on clipless pedals. Most of them I see have the cleats on the ball of the foot which would make me think that the muscles in your ankle absorb a lot of the pushing/pulling force. I have a bum ankle so on my platform pedals I pretty much pedal on my heel, or a bit forward of it, but way back from the ball in any case. So is the cleat location adjustable? or is my entire understanding of it just wrong??