Small dent in CF handlebars
06-16-17, 01:42 PM
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Small dent in CF handlebars
I was changing stem and I think I didn't spread the force evenly on all screws which caused a small dent in my CF handlebars.
I think this is just a dent to lacquer / paint (it's quite shallow). But I am not 100% sure. I tried to gently stroke handlebars with coin to see if there is any sound difference but it all sounds good. There are no visible cracks. The handlebars still feel sturdy.
I have ridden it for couple of months and it all looks sturdy, no cracks/further dents etc..
Also worth mentioning I was using torque wrench and I used 3,5NM torque and the maximum allowed one is 5,5NM.
I think this is just a dent to lacquer / paint (it's quite shallow). But I am not 100% sure. I tried to gently stroke handlebars with coin to see if there is any sound difference but it all sounds good. There are no visible cracks. The handlebars still feel sturdy.
I have ridden it for couple of months and it all looks sturdy, no cracks/further dents etc..
Also worth mentioning I was using torque wrench and I used 3,5NM torque and the maximum allowed one is 5,5NM.
06-16-17, 01:56 PM
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Please explain: "I tried to gently stroke handlebars with coin ".
06-16-17, 01:58 PM
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That sounded bad sorry.. : D I think stroke was not the word I was meant to use.. I tap the handlebars CF with a coin to see if the noise is muffled somewhere which could indicate that there is damage to CF structure..
06-16-17, 02:02 PM
#7
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Yeah, that would have me pooping my pants... like finding a crack in your aluminum frame... not good!
06-16-17, 02:23 PM
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don't try this at home.
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I try to get the same gap (and same torque) on both the top and bottom screws of the stem's handlebar clamp. Tighten each bolt alternately, a little at a time.
And I don't normally need to use the maximum recommended torque to keep the bars from slipping. (I use carbon assembly paste on my aluminum handlebar - aluminum stem surfaces.)
And I don't normally need to use the maximum recommended torque to keep the bars from slipping. (I use carbon assembly paste on my aluminum handlebar - aluminum stem surfaces.)
Probably wasn't even enough.. Do you think this is dangerous to ride now?
06-16-17, 03:07 PM
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That looks like it's just in the surface treatment. It's basically sand-like particles that have been lacquered on the surface to give a grippier portion for the stem to grab.
06-16-17, 04:32 PM
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Not to dump on you but I am looking at your photos and it says on the bar "Use Friction ?". Which I take to mean paste. Hope everything works out for you.
06-17-17, 11:15 PM
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Check out this thread at WW 3T handlebars with stem imprint. Safe to ride? - Weight Weenies
