I have them on my mountain bike. One side of the pedal is a regular clip, the other side is a platform with a flat place in the middle that is shaped like the cleat. That way, when I'm trying to get started somewhere between a rock and a hard place, I'm not trying to deal with clipping in at the same time. Or if I think the trail is getting just a tad too rough, being a newbie, I can unclip and flip the pedal over. Then if I fall, I don't have to worry about unclipping at the same time.