I have a BMW K100RT, 1986, with 90,000 miles on it. There is a vibration somewhere in the drivetrain, not bad, but takes a toll on longer rides. I have heard my bike should be smooth running. At 60 mph I can bring in the clutch and it coasts perfect. I have had the engine completely tuned and synced twice, replaced all fluids, and balanced the tires. The Metzler tires are a year old and in good condition.
There is a tiring vibration in the handlebars, too.
Please give me suggestions. I really like this bike and plan to ride it a lot. Thank you!
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Grant
Spokane, WA