i dunno, right now im definitely preferring holdfast's to my clips and strap....seems a bit easier to get into and out with my street shoes (adidas sambas), pretty much set and forget but still easy to tighten (big velcro strap), way more surface contact with the tops of the feet and are angled nicely for foot shape....comfortable. was easy to install on generic origin8 track peddals. i dunno, im a convert.