I do not have crossbars on the roof of my Rogue and there was no where to attach the straps front and back. It is 0. Did what it needs to do. It feels and looks very cheap and inexpensive in actuality, in person. Then I used the wall to help myself stand on it, watched closely the instruction video, started slow until my legs and back learned to adjust with the pedals. It?s also frustrating because the chord will look perfect. I was so discouraged to discover that I could not replace my worn out Ahnu hiking shoes but upon discovering that they were a brand created by Teva I researched and bought these. You are going to have to watch videos and practice using the navigation techniques. Various tips to accommodate different ear sizes. Great tread and stable soles.