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.
Vibration in the UCE bikes is often caused by assembly stress in the frame. As stated, the UCE is NOT a vibrator at heart - BUT - the engine vibration that it DOES have (it IS a big single after all ...) can be amplified at certain frequencies by the way the frame has "settled in" on the bike. The problem arises when the frames' backbone is bolted to the engine on the assembly line. Sometimes they bolt right up - other times they require a bit of "tweek" to get the bolts all in as they are STILL hand made. Occasionally this stress in the frame will resonate at a certain engine RPM - causing you, the rider, to fell vibration. Of course the whole thing changes as it heat cycles, etc, so that a bike with vibration may suddenly have none - and vice versa. Fortunately, the fix is WAY easy! Simply loosen all the engine mount bolts with the bike up on the centre-stand and a small of wood under the front wheel. This keeps the bike in the proper "relative position". 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.
Topic: UCE Vibration (Read 4960 times)