Cycling Equipment · Public discussion

Is my fork cracked?

Started by Scott B. · · Last activity · 3 posts · 909 views

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Cycling Equipment
Published
7 March 2004
Last activity
7 March 2004
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Scott B.
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  1. I took my 1999 Klein Quantum Pro out to the garage today for
    it's spring cleaning and upon examination found found two
    cracks that are of concern to me. The first crack I noticed
    is on the middle back of the for crown and is visible both
    above and below the hole for the brake bolt. The other crack
    is on the front of the fork crown and forms an inverted "Y"
    over the brake mounting hole. How can I determine if these
    are paint cracks or structural cracks? Is this a likely spot
    for structural cracks to occur? Keep riding the bike or
    leave it parked for now? Thanks for the help. Scott B.

  2. i'd stop riding until you can get it checked by someone who
    knows what they're doing! take it to your lbs.

    what you describe could well be cracking, but see above
    for advice.

    Scott B. said:

    I took my 1999 Klein Quantum Pro out to the garage today
    for it's spring cleaning and upon examination found found
    two cracks that are of concern to me. The first crack I
    noticed is on the middle back of the for crown and is
    visible both above and below the hole for the brake bolt.
    The other crack is on the front of the fork crown and
    forms an inverted "Y" over the brake mounting hole. How
    can I determine if these are paint cracks or structural
    cracks? Is this a likely spot for structural cracks to
    occur? Keep riding the bike or leave it parked for now?
    Thanks for the help. Scott B.

  3. Quoted message said:

    d "Y" over the brake mounting hole. How can I determine
    if these are paint cracks or structural cracks? Is this
    a likely spot for structural cracks to occur? Keep
    riding the bike or leave it parked for now? Thanks for
    the help. Scott B.

    Tough one. Nondestructive testing-Zyglo-can't be used with
    paint. I'd call Klein and see if they'll warranty it. Cracks
    in aluminium are a serious amtter ant the only way to tell
    would first involve paint removal. Phil Brown

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