Thanks. Will get this checked. I know RE vibrates but being 500cc bike at least it should not vibrates between 50-60 Speed interval.All Royal Enfield bikes be it 350cc or 500 cc vibrates post the mentioned speed. And it gets un bearable at 90kmph. It is the character of bike.
But still you can try shifting to a better aftermarket engine oil. And get the engine mounting bolts checked up by a good mechanic. Also see if the rubber mount where the engine is bolted are not looking worn out.
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