Freewheel cog disappears while riding, why?

Discussion in 'Cycling Equipment' started by Dan Cosley, Aug 26, 2003.

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  1. Dan Cosley

    Dan Cosley Guest

    I had a strange little incident today. I was accelerating off a stop sign and suddenly the chain is
    just spinning, no power. Operator error, right? So I find a gear and get through the intersection,
    but it keeps happening whenever I try to shift into my 4th smallest cog (on a 6-speed freewheel). I
    stop, and look down, and the teeth are just missing. Everything else is in order. Two questions:

    1) Has anyone else had this happen to them?

    2) What probably happened to cause it? FWIW, I felt a little "slip" in that gear, like how it feels
    right after you put on a freewheel and it's tightening while you're riding, shortly before the
    incident. Also, this wheel was salvaged from a fairly old bike, and I'd ridden it about 20 miles
    on the wheel.

    Thanks for any ideas.

    -- Dan

    --
    Dan Cosley ([email protected] * http://www.cs.umn.edu/~cosley/) GroupLens Research
    Lab, Univ of MN (http://movielens.umn.edu/ * 612.624.8372) *** Just a foot soldier in the Army
    of Truth ***
     
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