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Cannondale Quick 5 headset vibrating

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Cannondale Quick 5 headset vibrating

Old 04-09-17, 02:02 PM
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johnwesleywalsh
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Cannondale Quick 5 headset vibrating

I was trying to put some spacers on my headset a few weeks ago and I think I might have missed a part because now when I hit a bump or hit the brakes it vibrates.

Bike is a Cannondale Quick 5, headset is Cane Creek VP-a48E.

Some pics below for illustrations. any help is appreciated!
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Old 04-09-17, 03:29 PM
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Andrew R Stewart 
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Hard to say with no actual hands on exam but I suspect a loose headset adjustment. There needs to be enough spacers and stem stack to allow the top cap to fully draw up the steerer and not bottom out before the stem's pinch bolts are tightened. If the top cap contacts the steerer's top end before the bearing preload is achieved a loose and clunking fork/headset bearing results. Andy.
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Old 04-10-17, 01:09 AM
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Originally Posted by Andrew R Stewart View Post
Hard to say with no actual hands on exam but I suspect a loose headset adjustment. There needs to be enough spacers and stem stack to allow the top cap to fully draw up the steerer and not bottom out before the stem's pinch bolts are tightened. If the top cap contacts the steerer's top end before the bearing preload is achieved a loose and clunking fork/headset bearing results. Andy.
yep... +1 to Andy's response...there MUST BE room for the top cap to have space beneath it, or you will NOT be able to get enough preload on the headset.... i leave about 1/16 to 1/8 inch between the cap and steerer tube.... that equates to about 1/4 inch inside the stem clamp, usually...

pull the cap off without loosening the clamp, and take a look... MIGHT be another issue if there's ample space

Last edited by maddog34; 04-10-17 at 01:16 AM.
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