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  1. #1
    me have long head tube TallRider's Avatar
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    flat bar a danger after crashes cause bar-ends to crimp end of bar?

    my commuting bike has flat bars with bar-ends. I've crashed a couple of times, both low-speed crashes where the bike landed on its side and the bar-end took a lot of the initial impact. In both cases the quill stem twisted inside the steerer tube. Easy to fix of course.

    But I wonder about the safety of the handlebar. It's a standard mtb flat bar with 25.4mm clamp, mounted in an old quill stem (also with 25.4mm clamp).

    The end of the bar is crimped, on both sides, where the bar-ends attached. I've re-attached the bar-ends, simply moving them inward along the bar to clamp onto "clean" uncrimped part of the bar.

    Is it worth worrying about damage to the bar?
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  2. #2
    Senior Member Sci-Fi's Avatar
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    Should be ok...just check for splits/cracks in the tubing and/or replace the handlebar if there is or for peace of mind. Or just pickup a $10-15 Dimension/Pyramid/etc 'steel' flatbar and replace it.

  3. #3
    cab horn
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    Quote Originally Posted by timcupery View Post
    my commuting bike has flat bars with bar-ends. I've crashed a couple of times, both low-speed crashes where the bike landed on its side and the bar-end took a lot of the initial impact. In both cases the quill stem twisted inside the steerer tube. Easy to fix of course.

    But I wonder about the safety of the handlebar. It's a standard mtb flat bar with 25.4mm clamp, mounted in an old quill stem (also with 25.4mm clamp).

    The end of the bar is crimped, on both sides, where the bar-ends attached. I've re-attached the bar-ends, simply moving them inward along the bar to clamp onto "clean" uncrimped part of the bar.

    Is it worth worrying about damage to the bar?
    Is it steel?
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  4. #4
    Senior Member LesterOfPuppets's Avatar
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    As long as the clamp area looks OK, I wouldn't worry too much about it unless you hit jumps or have big arms and hammer out of the saddle a lot. I'd just saw off the ends, clean 'em up with a rat tail file and get on with it.
    1980ish Free Spirit Sunbird fixed * 1996 Mongoose IBOC Zero-G * 1997 KHS Comp * 1990-ish Scapin * Olde Western Auto Cruiser.

  5. #5
    Great State of Varmint Panthers007's Avatar
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    And always plug the ends of handlebars. Otherwise, in the event of a bad crash, they can easily impale the rider or others. I saw this after it had happened. The scars were horrific.
    Quote Originally Posted by Cateye View Post
    Only panthers007 is stupid enough to believe that this is a good idea.

  6. #6
    Senior Member DannoXYZ's Avatar
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    I would fit an insert into the ends of the bars to take the compressive loads of the bar-ends. That way, they won't crimp inwards over time. Better clamping too.

  7. #7
    Senior Member
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    Quote Originally Posted by Panthers007 View Post
    And always plug the ends of handlebars. Otherwise, in the event of a bad crash, they can easily impale the rider or others. I saw this after it had happened. The scars were horrific.
    +1. Part that costs well under a dollar that can save your life.

    I know there was an article posted on BF where the rider didn't get a chance to scar - took a core sample of himself that proved fatal.

  8. #8
    me have long head tube TallRider's Avatar
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    bar is aluminum, clamp area (joint to stem) appears fine
    ends are plugged, but not with something that bears clamping force of bar-ends
    I might just saw off the ends of the bar (crimped area) so that bar doesn't stick out beyond bar-ends and have the ability to take a core sample.

  9. #9
    Primate Metzinger's Avatar
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    Al bars aren't too expensive.
    Not the worst idea to replace them periodically. Especially after incidents.

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