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  1. #1
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    How deep a scratch?

    Would you tolerate on a pair of road bars before replacing them?

  2. #2
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    Just drop it a bunch of times and beat it up pretty good. If it doesn't break I'd still ride it.

  3. #3
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    How deep a scratch?

    What material? Define deep. .5mm? Deeper? Shallower?


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  4. #4
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    Aluminum. And deep as in I was cutting off the old tape with a pair of tin shears and the non point non sharpened tip (I don't think the sharpened edge got the bars. I think it was me pressing too hard with the tip that caused it) and it scratched them at the top of the bends near where the under parts of the hoods touch the bar. The scratch is a maybe twice as deep as the anodization.

  5. #5
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    Oh, c'mon, why do people post and then not reply back?

  6. #6
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    Re: How deep a scratch?

    Can you see it when you wrap bar tape over it?

  7. #7
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    *confused* no.

  8. #8
    Fat-tired Roadie
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    Quote Originally Posted by aBicycle View Post
    Oh, c'mon, why do people post and then not reply back?
    I do that on Fridays sometimes. I go away on a lot of weekends and don't take my internet addiction with me.

    If I'm visualizing this right, you're talking about a purely cosmetic problem.

    Post a pic if you like.
    "Don't buy upgrades; ride up grades." -Eddy Merckx

  9. #9
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    Quote Originally Posted by aBicycle View Post
    Would you tolerate on a pair of road bars before replacing them?
    If it does not impair function or performance, it only adds CHARACTER.

  10. #10
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    Quote Originally Posted by aBicycle View Post
    road bars
    Road bars? What would I be doing with road bars?

  11. #11
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    Quote Originally Posted by Flat Again??? View Post
    Road bars? What would I be doing with road bars?


    Riding on roads and quasi roads.

  12. #12
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    Quote Originally Posted by aBicycle View Post
    Aluminum. And deep as in I was cutting off the old tape with a pair of tin shears and the non point non sharpened tip (I don't think the sharpened edge got the bars. I think it was me pressing too hard with the tip that caused it) and it scratched them at the top of the bends near where the under parts of the hoods touch the bar. The scratch is a maybe twice as deep as the anodization.
    No more than 5% of the total wall thickness unless it is at a stress riser location then I would polish out the cut and ensure the remaining wall thickness is 97% of original.

  13. #13
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    Which locations would be stress riser locations on the bars? Seems like the whole bar could be a stress riser.

  14. #14
    Fat-tired Roadie
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    Next to the clamp. For anything. Near changes in diameter. Near corners if your bar has them. Near cable guides, ditto.
    "Don't buy upgrades; ride up grades." -Eddy Merckx

  15. #15
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    I think thereís the perfect website for the thread topic poster: Road Bike, Cycling Forums

    Otherwise, us MTBRíerís will ride our stuff dirty/scratched/scuffed/broken until the sun goes down.
    QUOTE from MTBR.COM: You have given Brewtality too much Reputation in the last 24 hours, try again later.

  16. #16
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    :P

    I've never had road bars before so I thought they may be more delicate.

  17. #17
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    hmmm... I'd tolerate a pretty deep scratch since replacing road bars would dig into my mountain bike funds.

  18. #18
    Fat-tired Roadie
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    Quote Originally Posted by aBicycle View Post
    :P

    I've never had road bars before so I thought they may be more delicate.
    This guy has road bars.
    How deep a scratch?-spz14.tourdefrance.174924_670.jpg

    Actually, very little on a road bike is less strong than what's on a mountain bike, although it does depend on class.
    "Don't buy upgrades; ride up grades." -Eddy Merckx

  19. #19
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    Quote Originally Posted by aBicycle View Post
    :P

    I've never had road bars before so I thought they may be more delicate.
    Iím glad you can appreciate my sarcasm.
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  20. #20
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    aluminum handlebars? if they're not broken, don't fix them...


  21. #21
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    A "scratch" that has cut any fibers below the clear coating should be replaced, period. There are many carbon bars and frames that have a decorative layer of carbon usually denoted by the cross fiber look or fabric look. As I understand it, this is layer is known to be decorative with the structural fibers below. I'm not a carbon engineer so don't bet on this. However, most bars today do not have this apparent decorative layer so a scratch or gouge even on the outside surface of these types, again, actual cuts to the fibers can spell trouble and should be discarded, doing so will insure that you won't have to say 'I should have replaced them'. A well made carbon bar will outlast anything else out there if it is never damaged. The right carbon bar that one is happy with is well worth the properties they offer but are so much more vulnerable to damage unfortunately. Be careful and inspect them often, there wonderful but will bite hard if they break. They will go without warning in the blink of an eye. As for road bars, think of the consequences at the speeds they are ridden and what's below you ! If you question a given bars integrety, replace it.

  22. #22
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    How deep a scratch?

    Quote Originally Posted by danaco View Post
    A "scratch" that has cut any fibers below the clear coating should be replaced, period. There are many carbon bars and frames that have a decorative layer of carbon usually denoted by the cross fiber look or fabric look. As I understand it, this is layer is known to be decorative with the structural fibers below. I'm not a carbon engineer so don't bet on this. However, most bars today do not have this apparent decorative layer so a scratch or gouge even on the outside surface of these types, again, actual cuts to the fibers can spell trouble and should be discarded, doing so will insure that you won't have to say 'I should have replaced them'. A well made carbon bar will outlast anything else out there if it is never damaged. The right carbon bar that one is happy with is well worth the properties they offer but are so much more vulnerable to damage unfortunately. Be careful and inspect them often, there wonderful but will bite hard if they break. They will go without warning in the blink of an eye. As for road bars, think of the consequences at the speeds they are ridden and what's below you ! If you question a given bars integrety, replace it.
    I did t realize that aluminum had fibers and clear coat?


    Sent from my rotary phone and compiled with a telegraph machine.
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  23. #23
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    Quote Originally Posted by Ken in KC View Post
    I did t realize that aluminum had fibers and clear coat?


    Sent from my rotary phone and compiled with a telegraph machine.
    Sorry ! Got carried away with menrion of carbon, oops !

  24. #24
    Front Range, Colorado
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    Whew for a minute there I thought I logged into the road biker forum.
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  25. #25
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    Why would anyone think they're carbon? I'm not having any of that junk on my bike!

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