what is this protrusion on one side of my platform pedal for? I've bought new pedals like on the picture. They are good, but i'm confused about the part, marked on the picture.

I've always thought that pedals have no 'up' and 'down' sides, so i can't realize why it's assymetric.


Can you explain me the use of the marked part?
When you fit toe clips to your pedals, that spike is there to help you flip the pedal over so the clip is on the top.

The pedals have an up and down orientation when toeclips are fitted.