After installing the new cush drive i am getting vibrations at 3000 to 3500 rev`s in the top couple of gears , over that and it`s fine , i was thinking that the cush drive may have put my wheel out of balance , possible , but i thought that vibration from a out of balance wheel would show it self in different speed`s not different rev`s
What do you guy`s think it could be


What goes round comes round