Carbon seatpost strength
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Carbon seatpost strength
The bike I want has a carbon seatpost, but I am a cool 240. Is there a chance that this thing will snap on me under any conditions?
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Yes, there is a chance it will snap. I was 125 lbs when I had mine ... and it snapped. Apparently my little un-muscular arms were strong enough to tighten the clamp down too much. IMO if a 125 lb girl who isn't known for her upper body strength can snap a carbon seatpost ...... carbon seatposts aren't worth it!!
I've now got a much sturdier aluminum seatpost.
I've now got a much sturdier aluminum seatpost.
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e mail the manufacturer and ask if the seat post has a weight limit.
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I have carbon seatpost on two bikes 210lbs. No problems yet.
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Originally Posted by curt in denver
I have carbon seatpost on two bikes 210lbs. No problems yet.
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Originally Posted by curt in denver
Anyone else break one?
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Maybe I can get the shop to swap it out before I buy. That is the last thing that i need, a sharp half carbon seatpost up my ass.
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I weighed 240 when i started riding my carbon seatpost...I'm down to 200 now, though.
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I have broken two on different road bikes in the past two months. My weight fluctuated between 185-195 during this time. I have never tried carbon posts on my MTB's.
These are the posts I have destroyed
1. Sworks carbon with the PAVE insert cracked at the rear seat clamp.
2. OEM that came on a 2004 allez comp. cracked at seat clamp.
never again. can you say thomson?
These are the posts I have destroyed
1. Sworks carbon with the PAVE insert cracked at the rear seat clamp.
2. OEM that came on a 2004 allez comp. cracked at seat clamp.
never again. can you say thomson?
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I can trust a carbon fork, but something like the seatpost I need it to be metal. My Bonty Sport seatpost (aluminum) on my MTB has taken a pounding, and it has no cracks anywhere.
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Originally Posted by trekkie820
I can trust a carbon fork,
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Originally Posted by Expatriate
Core sample waiting to happen. Don't do it.
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I trust a carbon fork because of what I have seen them do as rigid MTB forks in rock gardens, with rather robust riders.
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One of the guys in The Aussie Thread was just talking abut a mate of his that had his CF fork fail. That had to hurt. Call me grouchy, but the only CF on my bike is the headset spacers. At least with titanium, the expense can be justified by nearly zero risk.
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Originally Posted by trekkie820
I trust a carbon fork because of what I have seen them do as rigid MTB forks in rock gardens, with rather robust riders.
The snapped forks I saw broke under a guy who wasn't very big ... and who was riding downhill on a very smooth road. He was hospitalized.
That's two carbon failures (my seatpost and his forks) I've seen in less than a year ... and enough for me to consider carbon as a non-viable material for a bicycle.
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Originally Posted by Machka
That's two carbon failures (my seatpost and his forks) I've seen in less than a year ... and enough for me to consider carbon as a non-viable material for a bicycle.
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Originally Posted by TomM
So I guess a Carbon Fiber Wheelset is out of the question?
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Originally Posted by TomM
So I guess a Carbon Fiber Wheelset is out of the question?
Does such a thing exist?
If so ... I wouldn't even consider it.
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Originally Posted by Machka
Does such a thing exist?
If so ... I wouldn't even consider it.
If so ... I wouldn't even consider it.
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Oddly enough, I have yet to break a CF component. However, I have a string of broken Al and steel components in my past.
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Originally Posted by MERTON
that's cuz you're like... carbon man...
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Originally Posted by Expatriate
CF Bento box?
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