How can I do that? I don't have a workstand, so I'll have to do it with the bike upside down and turning the wheel with pedals. It's impossible to hold the rear wheel in the air and working on the brake. I'm not sure I can fix the problem, but at least I could do the wobble measurement ... only if I knew how to do it and had the right tools for it. Any external link would be appreaciated.