A friend & I have 450s with about 5rides on them [hard rides]. I have noticed that the sub frames are moving down & left. I have been checking sag allot & every time i have to change the 0 reference , like the frame or plastics are moving down,almost 10 mm.If you view both bikes from the back the fender looks pushed off to the left, like if you feel hard on the pipe side. anyone have this problem