Superb long ride today and now that I have reached 1200 miles from new I finally saw 80 on the clock. Right up to 1000 I didn't exceed 70 and have gradually increased the top speed since then. The thing is at no time time have I experienced anything other than the most mild and unobtrusive vibration and that remained the case at 80, which I held for a few miles. Is this a fault? Seriously, all the reviews I read prior to purchase were like "potter around at 55-60 because the vibration at 70 plus will shake the bike apart" and so on. And at no stage in my very long and careful run in have I found vibration to be a problem. I'd be interested to hear other peoples experiences.
Then start the engine and allow it to run, revving it up a few times, to "center" the engine in the frame and re-tighten all the mount bolts. The stress should be gone from the frame - as well as the resonant vibration. I've done this to a few bikes with outstanding results.
Sounds a bit like the old A65 trick, loosen engine mounts jack up engine and re-tighten mounts.Mine's smooth up to 65, bearable at 70 and uncomfortable at 80. The rest of the bike feels uncomfortable at 80 so might as well chuck in few vibes. Besides a big single has to vibrate, how would it talk to you otherwise?