The YFZ450 shocks are longer than OEM Banshee shocks. The maximum angle that the ball joint stud can move in relation to the it's body is generally the limiting factor in ho far down your a-arms can move in relation to the chassis. Normally, you shock runs out of down ward travel first before you reeach the angular limit of the ball joint. However, if this winds up not being the case and the ball joints are limiting your suspension travel, then the ball joints will wear out very quickly and can break quite easily. Ball joints breaking are one of those things that can kill you, so it' best to be checking to see whats actually going on with the front end of your bike before you start bolting things together. :thumbsup: