Unit is a legend in his own mind! Why do you keep bringing up motorcycles? But since you brought it up a Kawasaki 1000 clutch will handle 6000 rpm dragstrip launches for years. The older bikes are air-cooled and have roller bearings so i won't compare the engines to automobiles. The newer motorcycles with watercooling and journal bearings will surely last a long time. Some of the new very high output motorcycle engines probably won't last as long, your car wouldn't last as long if you ran 10 second 1/4 mile times either.
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