Barnone,so your saying that the reason the threads in the riser(not the bolts) stripped is that the threads are too short? so posiibly longer bolts would help my situation? I had to tighten them down so much becasue no matter how tight I got them the bars still moved. These bars do not have the nurrels(spelling?) like th old ones do..and since they are chrome.. they are slicker. any recommendations to that?