Bike Forums - wobbly front tire

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timandro

08-09-06 02:50 PM

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.

moxfyre

08-09-06 03:31 PM

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

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