Burgman 650 (2002 thru 2012)
I have a 2003 Burgman 650 with 58k miles on it. There's gear oil splatter around the rear wheel and tire. I removed the wheel and the gear box cover, the gears look good, there's gear oil on the wheel side.
I cleaned it up, re greased the wheel, and rode it for a week, 45 miles, then 30, 40...