There is no reason in the world that a Street Ridden Sport bike can't do mileage well over 100,000 km, especially if they are liquid-cooled ones.
..Tom
The engines are generally bulletproof. Look at ads to see what kills bikes: parking the bike with gas in it for >5 years. Modern engines are amazing, but what goes on a bike are all the other expensive bits, like suspension.
The exceptions are Ducatis -desmo valves were a great idea in racing in the 60s, still a stupid idea today on road bikes.