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?
I am looking at a 27.2 seat post and and some flat bars with a built in riser.
What should I know,I am both new to and scared of carbon fiber.
What should I know,I am both new to and scared of carbon fiber.
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You want to be confident in your components so you can ride and not worry and just have fun.
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Most of that kind of product is an aluminum core wrapped with a layer of carbon fiber for cosmetics.
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If you buy quality parts from a reputable brand, and you follow the company's installation and usage guidelines, you should be reasonably safe whether the parts are made of carbon fiber, aluminum, or steel. It's not so much about the material itself, but rather how that material is used.
With that said, each material does have its own unique properties -- good and bad. In the case of carbon fiber, it's lightweight and very strong in certain ways, but it's also possible to crush carbon fiber parts by over-tightening or unevenly tightening stems or seatpost clamps. This problem is more likely if you use clamping mechanisms that weren't designed for carbon fiber components, which may not distribute clamping forces equally around the part's circumference. It's kind of like an eggshell: Grip an egg in your hand and squeeze evenly and it's pretty darn strong, but squeeze it between your thumb and index finger and you're gonna break that egg pretty easily.
With that said, each material does have its own unique properties -- good and bad. In the case of carbon fiber, it's lightweight and very strong in certain ways, but it's also possible to crush carbon fiber parts by over-tightening or unevenly tightening stems or seatpost clamps. This problem is more likely if you use clamping mechanisms that weren't designed for carbon fiber components, which may not distribute clamping forces equally around the part's circumference. It's kind of like an eggshell: Grip an egg in your hand and squeeze evenly and it's pretty darn strong, but squeeze it between your thumb and index finger and you're gonna break that egg pretty easily.
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CF is not worth the risk and worry. Every scratch, abrasion, or crash/drop will leave you with concern of future failure... or replacing parts. All for minimal weight savings? Just say no.
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I have never been concerned about my CF fork and saddle. I wouldn't worry about CF bars or seat-post either - not worth the expense in my current opinion, which might change if I actually bought some, but safety wouldn't be my concern.
#7
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I just today switched from an Easton aluminum ergo drop bar (EA70 Aero) to an Easton carbon drop bar (EC90 Equipe) and it was worth every penny. I didn't do it for weight at all-- it's probably within 30g of the aluminum bar it replaced-- but road noise and buzz is virtually eliminated. My hands and arms feel better after 50 miles than they ever did on the aluminum bar. It is highly unlikely I will go back to aluminum for the handlebar at any time in the future. I wouldn't worry much about the crashing thing either. If you crash hard enough to break CF, you're probably going to bend aluminum.
Can't say it matters nearly as much for the seatpost. I've had 2 aluminum and 2 carbon posts, and if someone were to change them without my knowledge, I doubt I would even notice. They all feel exactly the same. I'm forever on a Thomson Elite, because it has pretty much the best clamp ever devised. Hindsight being 20/20, I should have bought the Thomson from the outset.
Can't say it matters nearly as much for the seatpost. I've had 2 aluminum and 2 carbon posts, and if someone were to change them without my knowledge, I doubt I would even notice. They all feel exactly the same. I'm forever on a Thomson Elite, because it has pretty much the best clamp ever devised. Hindsight being 20/20, I should have bought the Thomson from the outset.
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If you buy quality parts from a reputable brand, and you follow the company's installation and usage guidelines, you should be reasonably safe whether the parts are made of carbon fiber, aluminum, or steel. It's not so much about the material itself, but rather how that material is used.
With that said, each material does have its own unique properties -- good and bad. In the case of carbon fiber, it's lightweight and very strong in certain ways, but it's also possible to crush carbon fiber parts by over-tightening or unevenly tightening stems or seatpost clamps. This problem is more likely if you use clamping mechanisms that weren't designed for carbon fiber components, which may not distribute clamping forces equally around the part's circumference. It's kind of like an eggshell: Grip an egg in your hand and squeeze evenly and it's pretty darn strong, but squeeze it between your thumb and index finger and you're gonna break that egg pretty easily.
With that said, each material does have its own unique properties -- good and bad. In the case of carbon fiber, it's lightweight and very strong in certain ways, but it's also possible to crush carbon fiber parts by over-tightening or unevenly tightening stems or seatpost clamps. This problem is more likely if you use clamping mechanisms that weren't designed for carbon fiber components, which may not distribute clamping forces equally around the part's circumference. It's kind of like an eggshell: Grip an egg in your hand and squeeze evenly and it's pretty darn strong, but squeeze it between your thumb and index finger and you're gonna break that egg pretty easily.
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Thank you, all
But special thanks to Clark W. Griswold Who I'm sure is on his way to Wally World, thanks for putting it in perspective for me, your absolutely right ,I am 210 pounds, and aluminum is fine.Almost Trick because I am nervous as heck about this stuff and would be inspecting every little scratch for cracking, asploding thanks for that Wheever!
I would not be able to enjoy riding.Sky dog 75 it is right loads of tensile strength, but not much shier strength. It is just to delicate for a big horse like me.
Thank you for really great advice all the posts where taken in and well thought through and I am not going the carbon road on anything structural.
But special thanks to Clark W. Griswold Who I'm sure is on his way to Wally World, thanks for putting it in perspective for me, your absolutely right ,I am 210 pounds, and aluminum is fine.Almost Trick because I am nervous as heck about this stuff and would be inspecting every little scratch for cracking, asploding thanks for that Wheever!
I would not be able to enjoy riding.Sky dog 75 it is right loads of tensile strength, but not much shier strength. It is just to delicate for a big horse like me.
Thank you for really great advice all the posts where taken in and well thought through and I am not going the carbon road on anything structural.
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In all seriousness, though, ride what you're comfortable with, whether it be carbon fiber, aluminum, or steel. There's good stuff made from all three.
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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.
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.
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Perhaps the issue is more about weight than material.
If a component is super lightweight then the logic says more prone to breakage if damaged or used extensively&harshly.
Going lightweight? Carbon may be best.
Going for lifetime durability? More data to trust solid Al products from reputable manufacturers.
I would like to try a full carbon seatpost on my CF & Ti.
No 'trust' issues with me over full carbon fork on 3 bikes, so why not other pieces?
If a component is super lightweight then the logic says more prone to breakage if damaged or used extensively&harshly.
Going lightweight? Carbon may be best.
Going for lifetime durability? More data to trust solid Al products from reputable manufacturers.
I would like to try a full carbon seatpost on my CF & Ti.
No 'trust' issues with me over full carbon fork on 3 bikes, so why not other pieces?
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Last edited by Wildwood; 04-02-16 at 12:17 PM.
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If insecure replace them every couple years or after any Crash. whichever comes first.
Or forget it and stick with Metal Parts.
Or forget it and stick with Metal Parts.
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...but aluminum has no fatigue limit, so it can eventually break from fatigue failure! Oh noes! I guess steel's the only way to go ...but it rusts. Crap. I guess nothing's perfect. ;-)
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...but aluminum has no fatigue limit, so it can eventually break from fatigue failure! Oh noes! I guess steel's the only way to go ...but it rusts. Crap. I guess nothing's perfect. ;-)
If someone is worried about equipment failure, maybe cycling isn't the sport for them.
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One poster here showed aluminum bars after he took off the bar wrap. They were entirely corroded from sweat. There's another picture of a drop that bent in half from a mild crash. No material is immune to failure. That's why regular inspection and use of common sense like replacing a part after a crash is important. People can bash one material or another but it's all the same.
If someone is worried about equipment failure, maybe cycling isn't the sport for them.
If someone is worried about equipment failure, maybe cycling isn't the sport for them.
Rare as failure may be, one material has to be more risky than the others. They simply can't all be the same! Serious research shows which material this is, and yes, many cyclists are ok with it.
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Carbon frame, forks & steerer, cranks, seat post, bars, pedals, shoe soles, and bottle cages. Time spent worrying about failure while riding 0:00:000.
I have better things to do with my time.
I have better things to do with my time.
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There is a website called bustedcarbon.com. There are no posts since July 2011, so maybe that's when the industry finally figured out this carbon thing...
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It is just to delicate for a big horse like me.
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Clydeosaur,
Its ok for a guy who tops 200 pounds often 210 to ride carbon?
Even going over areas of roads that are less than perfect, some of the side walks and road transitions you have to cross are raised up over an inch they will make you clench your jaw when going over them even at reduced speeds.
Its ok for a guy who tops 200 pounds often 210 to ride carbon?
Even going over areas of roads that are less than perfect, some of the side walks and road transitions you have to cross are raised up over an inch they will make you clench your jaw when going over them even at reduced speeds.
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It's hard enough getting up for work now with out a broken collar bone.
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I do, and have for the last 6 or 7 years. In race form I'm 215. Carbon bars, post, fork, rear dropouts, saddle, seat post & pedals. In dus & tris I average in the 20's on the bike. Summer time I try to get 200 miles a week. I've never had an issue. That being said, I also do regular maintenance, cleaning and inspection just like I do on my other bikes. I'm not saying you should drop everything and go carbon. However, I think your fears of it a bit unwarranted.
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I have a carbon seat post and it was cracked I rode it anyway and I didn't die or explode. It is just as good as any other material and lighter.