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Carbon fiber seat posts and handle bars, are they safe? And what do I need to know?

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Carbon fiber seat posts and handle bars, are they safe? And what do I need to know?

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Old 04-11-16, 08:21 AM
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Originally Posted by molten
Because a "helmet" is a brain/human body issue.
If you find the correct political connections, maybe you can make some endorsements ---- to start the bureaucratic agency. Note: most citizens prefer to not have the gov. so deeply involved in their lives.
So a carbon wheel or fork or handlebar or frame breaking is not a brain/human body issue? I'll be sure to tell that to the person laying on the ground bleeding and broken the next time a CF fork (etc) breaks and I'm calling EMS.
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Old 04-11-16, 02:57 PM
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Originally Posted by rekmeyata
So a carbon wheel or fork or handlebar or frame breaking is not a brain/human body issue? I'll be sure to tell that to the person laying on the ground bleeding and broken the next time a CF fork (etc) breaks and I'm calling EMS.
Chances are, it will never happen (that you come across a person laying on the ground bleeding and broken from a carbon fork failure). But, I'll agree, it could.
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Old 04-11-16, 07:45 PM
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Originally Posted by Camilo
Chances are, it will never happen (that you come across a person laying on the ground bleeding and broken from a carbon fork failure). But, I'll agree, it could.
I almost did when a guy I saw was riding along when suddenly I saw him lurch forward and did an endo over his bike but lucky for him he landed on soft dirt and grass, when I stopped to see how he was and finding out he only had minor scrapes he told me his CF bar just snapped right off. Upon looking at the bar it did not snap at the stem it snapped about an inch and a half from the stem so I doubted it snapped due to improper torquing of the stem bolts which does happen and crushes the CF which later leads to the same effect this rider experienced. This was a high end CF bar made by 3T.
And they have video of CF forks just breaking; see: https://www.youtube.com/watch?v=JkDgwaqAXt4

All CF is not created equal to everyone's surprise. There are finge Asian manufacture who produce parts that are dangerously light and known for failing. Hyper exotic parts shipped with rider weight limits because of their extremely light nature, knockoff parts that emulate those provided by reputable manufactures are often seen for sale on E-Bay where many of you see them and think gee what a deal and buy them. So safety regulations should be put in place to protect us from crappy generic schit as well as keeping reputable manufactures accountable and, well reputable.
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Old 04-11-16, 10:48 PM
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I'm led more and more to the conclusion that the bicycling industry just doesn't care about the health of cyclists at all. They seem to have some sort of tunnel vision that shaving a few grams here and there is the be all and end all of the cycling industry.

If this means making all carbon components, frames and forks that could snap without the slightest warning, then so be it. Apparently, the 12 grams saved is all worth it.

I'm staying far away from carbon frames and carbon components such as seat posts handlebars and stems.
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Old 04-11-16, 10:49 PM
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What quality alternatives do we have to the carbon fork? Which manufacturers are making good (stiff, lightweight, strong) forks which can rival the strengths of carbon forks minus their aforementioned liabilities?
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Old 04-12-16, 10:06 AM
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Originally Posted by usatrump
I'm led more and more to the conclusion that the bicycling industry just doesn't care about the health of cyclists at all. They seem to have some sort of tunnel vision that shaving a few grams here and there is the be all and end all of the cycling industry.

If this means making all carbon components, frames and forks that could snap without the slightest warning, then so be it. Apparently, the 12 grams saved is all worth it.

I'm staying far away from carbon frames and carbon components such as seat posts handlebars and stems.
Of course it's worth the 12 grams, if a manufacture can brag and prove something weighs less then they can charge us more money and in a lot cases a lot more money. Money rules the day not safety.
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Old 04-17-16, 11:33 AM
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Originally Posted by AlmostTrick
Exactly. CF seems safer than metal because of the manner in which it fails... the rider is no longer around to talk about it!
What are you talking about. (no sic)
Metal always worked ON me. Carbon fiber broke on me once: I spoke in this thread once about my c/f handlebars breaking apart. And no-one in the thread argued. I take that as an agreement to my comments.
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Old 04-17-16, 11:44 AM
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Originally Posted by rekmeyata
So a carbon wheel or fork or handlebar or frame breaking is not a brain/human body issue? I'll be sure to tell that to the person laying on the ground bleeding and broken the next time a CF fork (etc) breaks and I'm calling EMS.
'EMS' follows the call that the 'PD' makes. As the 'pd' is the first on the scene. In many cases, the 'pd' makes the wrong judgment. In too many areas, depending on where the emergency scene, the 'pd' and calling officer be: victims at the scene --- ARE PRE-JUDGED.
Pre-judged going by how one looks. And the decision for making a call is made from there. Not all disabilities are 'Visible Disabilities." This society we live in is a very biggoted society.
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Old 04-17-16, 12:04 PM
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Originally Posted by Jim from Boston
Big guy here, and dittoes to all the pro-carbon replies above. Last year I crashed and my bike handlebars landed hard on the right side. That drop then slightly flexed with weight on it. I continued to ride the handlebars for a couple days, around 10 miles, avoiding that right hand drop even though it continued to support my weight until I could get to a shop and get a replacement. See picture below.



Those handlebars are amazingly light.
You're lucky,
mine completely separated. In much the same area. As the handlebar tape supported to hold up the hanging (separated) piece of c/f. Try finishing a bike ride, with a tight grip that only has support of a short c/f sticking <-> of the stem. Part of that finishing be going through metro traffic/cars/trucks.
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Old 04-18-16, 03:30 PM
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Originally Posted by chaadster
Yeah, this is silly. Carbon fiber is absolutely safe. There is no practical reason to avoid it.

Do what you want, but the world is going to keep making bikes, bike parts, cars, planes, tennis rackets, boat hulls and masts, etc., etc., etc. out of carbon fiber.
You are not excluding that 'Carbon fiber' components that are found to have been made in China, as the brand name be of Italian. Such result definitely will "asplode." I know of someone who had received such: the rails look obviously different. Ebay has no separate policy for "fraud" received items.
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