My Specialized Enduro 2004 is the lack of adjustment port bracket (only the lower hook can be adjusted in the horizontal plane a bit) not safe in this stand suspended. The upper hook is curved in a way that does not fit on my frame. Even then remain the pedals on the stand construction hanging by the unsafe / oblique hanging system. Therefore, a free-running rear is not possible. Hab just about swearing and is therefore completely unusable for me.