I've used other fork clamp bike mounts in the past and this is by far the best. The locking mechanism gives you some protection from the casual grab-and-dash thief. The exposed cam is huge and allows for loads of travel (i.e. they open wide enough to get past the lawyer lips on your forks). Once you have adjusted the acorn nut you never have to touch it again. Be careful though - make sure the curved plastic washer properly engages the cam. In practice this is easy to do and prevents poor clamping.