fwiw I will never put clipless on my fixie. I have them on all my other bikes but not on the fixt. I feel very save and secure strapped into a nice big platform pedal that is my power and my brake. Just today out in the woods on my mtb I came out of the pedals 3 or for times. I cannot afford to take that chance when approaching a light in traffic. mtb or cyclocross shoes will be the best bet imo.