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  1. #1
    Senior Member Novakane's Avatar
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    Cracked Steering Tube

    Have you ever seen a bicycle snap off about half an inch into the headset above the fork? My girlfriend accidentally crashed her bike head-on into a well set wooden post and it cracked right off. Totally destroyed it. (She's fine other than a few scrapes and bruises)

    I think it snapped due to being aluminum and a cheap department-store bicycle. I've never had that happen before.

  2. #2
    Senior Member Torchy McFlux's Avatar
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    Usually only happens to forks with threaded steerers and a stem that's been raised above the minimum insertion/maximum extraction mark.

  3. #3
    Peace and bicycle grease! une_vitesse's Avatar
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    i've seen that happen on a fork with a carbon steer tube. the damage wasn't even caused by a crash! he got on the bike, stood up and snapped the steer tube in two (just about 5 cm above the crown race). also, a too tight quill stem expander bolt might cause the seam of your steel steer tube to separate. That's another weird one, since the symptom will be a too tight headset when the wedge is torqued.

  4. #4
    Senior Member Novakane's Avatar
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    I guess I described it wrong... What was left was a fork that had only about a half-inch of steering tube, the rest was in the headset still, with the handlebars - it cracked near the bottom of the headset and dropped out.

  5. #5
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    Haven't seen that, but I did once have a BB axle snap. I put on the gas an the crank with the end of the axle just fell to the ground. Cheap wally mart bikes are made of pot metal not steel.

  6. #6
    Senior Member DieselDan's Avatar
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    George Hincapie, 2007 Paris-Roubaix.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  7. #7
    Scooby Snax
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    Quote Originally Posted by DieselDan View Post
    George Hincapie, 2007 Paris-Roubaix.
    And that was an aluminum steerer!

    I weigh more 'n Big George, some day's I get nervous... but then, I ride with more finesse! (or more caution)

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