Hello, maybe you guys and gals in here can help me with this. I bought a set of 7/8 grips from the dealer here because he told me that they would fit. Well, the left grip fits fine, but the throttle grip does not even come close. It has these little plastic bars that prevents installation on the end of the twist grip and near the inside. Will they work with some engineering, or do I have the wrong grips? The grips are the PG0862 ProGrips. Gel with chrome ends. I'm at a loss.