When mounting Gas Tank on my China Doll I needed somthing to go in between the Top Bar and Gas Tank. Since the Kit came with new Handel bar grips I used the old ones. I cut a 1" section and after spliting it, instaled it over the top bar. A dab of silicon seal on the bar & tank helps hold it in place. Now my tank fits tight on the bar and is insulated by the rubber grip. Vic.