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  1. #1
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    Aug 2006
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    wobbly front tire

    what are the possible causes of a wobbly front tire when decending a hill at over 40 mph? Occassionally my bike will do this and scare me to death. Spokes seem tight and front tire is securely fastened.

  2. #2
    cyclist/gearhead/cycli... moxfyre's Avatar
    Join Date
    Oct 2004
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    DC / Maryland suburbs
    My Bikes
    Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo
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    Either your wheel is out of true (in which case it would be noticeably wobbly at any speed) or...

    You've had a run-in with "shimmy", and dang is it scary Here's Sheldon Brown's explanation, with a link to a longer article on it: http://sheldonbrown.com/gloss_sa-o.html#shimmy
    My bikes | Linux and Python stuff | Photo gallery

    Sheldon Brown, I miss you. Thanks for the advice, ideas, humor, and infectious enthusiasm for everything bikes...

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