how many miles can a motorcycle do?

The older Goldwings it was recommended that the valves be adjusted at each 100,000 and they would turn multiple hundred thousands of miles.
No rerings either.
Oil changes, tires, brake pads and timing belt were the only needed maint in hundreds of thousands of miles.

A quote off the GL website,
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Would be interesting to hear from someone that has rebuilt a Goldwing engine because it was worn out. Not talking about broken, ran hot, wrecked, submerged, but just plain worn out. You know - would not pass a leakdown test, oil out the valves, no compression, rattling bearings. I have never seen one that was worn out - and the most mileage I have seen on one was an 1100 with 445K miles on it, still looking good and running just fine.

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