My '97 850R is making a "hollow" sound in the right front wheel. I hit a small bump in the road and it sounds as though the whole wheel is going to come off. I've taken it to two dealers and they can't tell me for sure what the problem is, the struts are good and it appears that the bushings are good as well. I paid one dealer $350 for a "it could be...", which did nothing to solve the problem. The only other thing I can think of is the wheel berring. Help