It has no sound at all when I brake. I have a custom brake pad on a robinson disk. I have the robinson shoes but not installed, I made these shoes when I wore out my robinsons. I do not brake that hard to get the rear wheel lifting but I can if I mash them, which I try not to do. What in the tranny would make noise when accelerating but not be there when I spin it freehanded? I want it 100% before this weekend but if I don't figure it out I will gladly let you check it out. I have to get the tune in better hopefully before this weekend.