Mud! every time I go riding but I take good care of it I use water base silicone so thats probably why the plastics looks good. Thanks a lot for your replys.The street bike its a 2005 1000 gsx-r an it handles great.It's my friend.
Simple green and a brush or Doctor mechanic when I can find it. Dr. mechanic is a product they sell down here in florida its like a degreaser but it doesn't fade the parts.