Pretty much anything not covered by the topics above. Short lived production bikes or vehicles, Electrical, Tires, Paint, Brakes, etc. Use this for tech questions, and "Shoot the Bull" for general conversation, no tech.
Looks like they're doing a mod to the original part,and breaking the corners on the hex,to show it's the updated one. The part numbers in the bulletin seem to be available only to dealers in the fix kit.