I really like my Nitto Big Front, which I got to replace my stolen Beckman front platform rack. Have used it on some very rough, unpaved roads. Not only is it bomb proof, it's good looking. Never had a problem with the P-clamp attachment. IIRC, Rivendell provides two different clamp sizes. The lower mount has two different holes, which provides some height flexibility. Contrary to the installation video on Rivendell's website, I do not have to remove the front wheel or skewer in order to attach it. But as noted, if you are on a tight budget, it's not for you.