Sorry, I realize that this is a Kawasaki forum....
There was an article several years ago in Motorcyclist about a mid 90's CBR-900 that had 250,000 (1/4 million, not a typo) miles on it. The owner lived in LA and commuted 90 miles (1 way) to work each day. He also rode in the canyons regularly. He kept a maintenance record that was published in the magazine. All he did was normal maintenance to achieve that many miles, no major repairs or overhauls. That's probably a record for a sport bike (touring bikes have done more miles than that).