Hello....Recently bought an 06 cbr 600rr. needs a little cosmetic work but overall hoping it will be a good bike. Only one problem....When you hit 35-40mph it feels like it starts to bounce around almost like the motor is cutting out. It is lowered and stretched. Could this be the problem? Also i think the front rotor has a bad spot in it but not to sure that would be the cause of the bouncing. Not a new rider but never had one lowered. Anyone had this problem? Thanks for any help!!!