I have taken two bikes beyond 100,000 km. Coincidentally, both had almost the same total on them at the time of sale.
First one ... 1987 Kawasaki Ninja 750R. The second motorcycle I ever owned ... the first one after the beginner bike (which was a Honda 450 Nighthawk). Bought that one new non-current in 1989 from Two Wheel Motorsports. That's the bike that I rode to BC then California and back in 1990, and it crossed 50,000 km somewhere in Colorado on the way home.
At around 80,000 km, it ate a camshaft (that engine had some design issues with the camshaft and ball-pivot rocker arm design). At a little over 100,000 km, I had Competition Wheels rebuild the engine. Then, in 1994 at around 118,000 km, I traded it in, to Competition Wheels, for ...
Second one. 1994 Kawasaki ZX9R. This was the first generation ZX9R (the one that Red Zeder has is a 2nd generation - and I know of a couple other members of this forum that have put high mileage on a second-generation ZX9R).
This one took me a little longer - 10 years - to reach the same mileage ... 118,000 km. The clutch went at around 105,000 km, and in the last season of ownership, at around 112,000 km IIRC, it blew the head gasket ... this particular engine design was known for blowing head gaskets because it was a bored out ZX7R engine, and the cylinder walls were too thin. I helped one other guy diagnose an overheating issue with his, with much lower mileage ... same issue. Somewhere around that time, I also wore out the brake rotors and the front brake calipers. Anyhow, it was starting to let me know that it was time to get some thing new, which just happened to coincide with Kawasaki building a bike that interested me more than this one, and I sold it at the time that I bought my 2004 ZX10R.