I have an 00ZR600EFI with a couple of modes done, D&D clutch kit, D&D pipe and chip, a quiet can and 120 picks. About half way through this years so called season I noticed a weired vibration when I ride. It seems to be noticable at about 45-65 mph. I don't know if it is just the wheels rolling on the base plate of the studs or what? Any sugestions would be great.