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Conference noted::bicycle

Title: Bicycling
Notice:Bicycling for Fun
Moderator:JAMIN::WASSER
Created:Mon Apr 14 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3214
Total number of notes:31946

261.0. "Check your seat bolts..." by RANCHO::HOLT (Robert Holt SW Engr @UCO) Sat Apr 11 1987 13:13

    I was pedaling down Hwy 1 (near Molera State Park) in top gear
    wind at my back and at top speed when suddenly the seat attachment
    bolt breaks. I nearly broke my tailbone as I came down on the
    back wheel. On investigation the cause turned out to be fatigue
    of the seat attachment bolt. The seatpost was the DuraAce EX,
    which I aquired in 1980. This bolt did not look to be of a
    sufficiently hardened steel, nor was it of sufficient diameter
    to resist being flexed across its entire width. Be warned, this
    could happen to you...try riding a bike with only a seatpost!
    
    Speaking of DuraAce, how have others liked it? I didn't care 
    much for how it shifted after the chain aquired road grit, nor
    could one easily tighten the derailleur levers.
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