Quote:
Originally Posted by ScraitT
It's usually at speeds around 50 on my way home, but I have done it as low as the 20s and as high as the 80s.
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It never happens at any speed other than 45 mph. Something about a particular resonant frequency of our frame/front-end assembly I'd guess. Go to a straight road, get your bike up to an indicated 55 mph in 6th gear, take your hands all the way off the bars, lean back (just a little, don't fall off!), and don't touch the bars until your speed indicates 40 mph. I have a hunch you might be surprised at what happens as you decelerate through 45ish mph...