Carbon Fibre seatposts why and worth it

crog
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Carbon Fibre seatposts why and worth it

Postby crog » Sun Sep 30, 2007 3:07 pm

Hi,

Is the advantage of CF seatposts purley weight or do they offer a more comforatable ride.

paring with $100 Plus for a seatpost seems alot although some alloy post apprach similar levels

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Kalgrm
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Postby Kalgrm » Sun Sep 30, 2007 3:39 pm

Vibration reduction is the main benefit of CF seat posts. Plus there's the bling factor ....

Cheers,
Graeme
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MountGower

Postby MountGower » Sun Sep 30, 2007 4:13 pm

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Kalgrm
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Postby Kalgrm » Sun Sep 30, 2007 4:44 pm

... making your soft bits hard and your hard bits soft .... :wink:
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ggundersen

Postby ggundersen » Sun Sep 30, 2007 5:07 pm

Only bling

I can't feel the difference between a carbon or steel or titanium post

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toolonglegs
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Postby toolonglegs » Sun Sep 30, 2007 5:22 pm

I may like a carbon bike but I put a thomson post on and ditched the carbon one....would have like to have known it would last but I knew the thomson would.Unlike the two rims that have gone in the last month...both less than a year old!.

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mikesbytes
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Postby mikesbytes » Sun Sep 30, 2007 6:16 pm

My rule on seat post material is => whatever was on the bike when I got it stays.
If the R-1 rule is broken, what happens to N+1?

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tallywhacker
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Postby tallywhacker » Sun Sep 30, 2007 7:00 pm

there's also the added benefit (?) of it punching you a new one when it breaks :cry: . CF seat posts scare me

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Kalgrm
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Postby Kalgrm » Sun Sep 30, 2007 7:03 pm

Has anybody heard of them breaking? Just curious - my main bike doesn't have a seat post .....

Cheers,
Graeme
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Music was better when ugly people were allowed to make it ....

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mikesbytes
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Postby mikesbytes » Sun Sep 30, 2007 7:17 pm

Kalgrm wrote:Has anybody heard of them breaking? Just curious - my main bike doesn't have a seat post .....

Cheers,
Graeme


Can't remember the circumstances but a bent rider won a prize - a seat post. :D
If the R-1 rule is broken, what happens to N+1?

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Kalgrm
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Postby Kalgrm » Sun Sep 30, 2007 7:51 pm

That's the sort of prize I'd win. My father's girlfriend nearly always gave me aftershave for Christmas, even though I had been wearing a beard for the whole time she knew me. A seat post would complete the showbag of useless presents ..... :roll:

Cheers,
Graeme
Think outside the double triangle.
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Music was better when ugly people were allowed to make it ....

ggundersen

Postby ggundersen » Sun Sep 30, 2007 8:06 pm

Had my hands on lots of broken carbon frames
Not many posts though
Just for the record - maybe 90% of the broken frames/posts were not the manufacturers fault - but the idiots riding them

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europa
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Postby europa » Sun Sep 30, 2007 8:11 pm

There's not a lot of weight saved in a seat post - modern alloy ones are pretty good to start with. Put a good saddle on and the post is irrelevant. Trouble is, the modern plastic bodied platform isn't a working definition of a good saddle.

I like Mike's thinking though - keep what came with the bike. Having to buy seat posts annoys me as it's something the manufacturer should get right in the first place.

Richard
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Mulger bill
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Postby Mulger bill » Mon Oct 01, 2007 9:56 am

My CF post hasn't broken yet, touch wood.

It came with the bike, I was dubious at first but Mikes words on this thread convinced me to stick with it.

I had a question on durability but it seems to be going OK since then.

I'm not gonna call the comfort factor, my last time on a roadie was an old steelie 20 odd years back.

Honestly, if you're not comfortable with a plastic pipe holding your saddle up, go with ally, AFAIK the weight penalty is miniscule, and would be far outweighed by your peace of mind.

Shaun
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vitualis
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Postby vitualis » Mon Oct 01, 2007 11:54 am

Perhaps the design of the post and the material of the frame itself makes a difference.

On my aluminium alloy bike, the difference between the stock alloy seat post and my CF post (Specialised Pave Advanced) is absolutely night and day. In fact, I was surprised that it could make such a difference. Looking at reviews though, it seems that people with carbon fibre frame bikes notice much less of an improvement.

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Bnej
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Postby Bnej » Mon Oct 01, 2007 12:22 pm

The Pave Advanced is a post designed especially to improve comfort, not all are. If I were buying a new post to improve comfort, that's what I'd get.

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toolonglegs
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Postby toolonglegs » Mon Oct 01, 2007 12:36 pm

I had a specialized set post on my cytek,it was ok..can say i noticed any comfort improvement over the previous post..but i had to take it off and replace it with a thomson set back turned around the wrong way when i went for a bike fit...i needed my position way forward as it turned out the seat post angle was too relaxed on the larger frames.The specialized pave post was nearly double the weight of my thomson.My System six came with a carbon post but it was a super light Alien model so I went with the thomson again,it is a pity harsh ride as the rear triangle is alloy and the front carbon and super stiff...It dosent seem to bother me too much even on big rides.I think 99% of people would be fine on carbon posts,I only know of one breaking,but then i have broken/bent at least 10 alloys ones (on mtb's).I can see the alloy one flex quite a bit when in the saddle powering it....but I have faith :wink:

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