I?m probably going to return the ones I got and get them in a different color though ReturningUPDATE: raising rating from 1 star to 4 stars. Estan super cómodas y el diseño es muy bonito. Buttons are a little stiff, Id rather touch controls instead of pushing so hard. I can?t speak for adult bikes but this works for our kid Trek bikes. The fact that I had even did this didnt even hit me until I opened up a package from UPS & seen these inside. First time using this holder I rode 20 miles on paved, grass and wooded trails. Although the sandal bed is the same size as the other size 11s I ordered this year, the straps are tighter, which means my foot doesnt go as far forward, it might even be that the toe thong is placed too far back. For reasons known only to their psychiatrist and the gremlins in Hiroshima, they use 8 spline screws, not allen screw. This is my last purchase of this brand.