I have a 2003 230 and have recently performed the performance mods. It is running excellent, and I was running on a bunch of county roads this last weekend at Full speed and the front end has what my riding partner calls head shake. The front tire is shaking side to side rapidly and I am unable to stop it by arm strength. Looking for some advice if this is a worn tire issue, suspension, or just running faster on loose gravel. It wasn't slowing me down except for going into tight corners, and it's not bad enough to keep me from Wot. The tire has good tread, but is pretty old and has some weather checks. All help is appreciated.