Carbon Seatpost ?????

06townsonj

Hi,

I am going to buy a cheap carbon seatpost off ebay. I have narrowed it down to 2 which can be viewed below.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=270684744259&ssPageName=STRK:MEWAX:IT#ht_1451wt_1116

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=150540656963&ssPageName=STRK:MEWAX:IT#ht_3928wt_912

Which seatpost is better?
Will these seatpost's fit all types saddles?
What one would you buy and why?

Thanks,

peter101cycle

If it were me, I would not touch either with a bargepole......

For me, you should buy a branded carbon seatpost, as I would go with more security of how well-made it was.

You may be OK buying one of these, but if it fails catastrophically, you will have a real fall as the seatposts take a lot of stress and weight.

Depends how much you value your rear-end I guess.......
:shock:

Chrissz

Get one of these http://cgi.ebay.co.uk/New-Saso-Carbon-t ... 0493572438 I was a little dubious at first but it's done me very nicely for over 5k miles and I'm no lightweight! The quality and feel is fantastic - well worth it IMHO!

peter101cycle

Chrissz wrote:

Get one of these http://cgi.ebay.co.uk/New-Saso-Carbon-t ... 0493572438 I was a little dubious at first but it's done me very nicely for over 5k miles and I'm no lightweight! The quality and feel is fantastic - well worth it IMHO!

Slightly different price range this one though......at £60, you should be able to get a more widely known brand on discount!

AndyF16

I think nothing of throwing a carbon frame 'up hill and down dale' but is I just me that blanches at the thought of a carbon seatpost? Something to do with shards of brittle carbon meeting soft nether regions - unfounded I'm sure but I'll stick to alloy thanks :P

Squillinossett

I used to have a carbon FSA jobbie, but when I got the new bike went back to Tompson. Two reasons.

The masterpice is:

A: Lighter than most carbon seatposts
B: Will outlive you, nevermind the bike. Never seen such well built parts.

Oh and....c: Its sex as hell in the flesh.

peter101cycle

Squillinossett wrote:

I used to have a carbon FSA jobbie, but when I got the new bike went back to Tompson. Two reasons.

The masterpice is:

A: Lighter than most carbon seatposts
B: Will outlive you, nevermind the bike. Never seen such well built parts.

Oh and....c: Its sex as hell in the flesh.

+1 for Thompson seatposts - used to have one on my old frame, thought about putting one on the Dolan but thought the carbon/carbon combo was safer for the frame seat tube

Squillinossett

peter101cycle wrote:

Squillinossett wrote:

I used to have a carbon FSA jobbie, but when I got the new bike went back to Tompson. Two reasons.

The masterpice is:

A: Lighter than most carbon seatposts
B: Will outlive you, nevermind the bike. Never seen such well built parts.

Oh and....c: Its sex as hell in the flesh.

+1 for Thompson seatposts - used to have one on my old frame, thought about putting one on the Dolan but thought the carbon/carbon combo was safer for the frame seat tube

Less chance of carbon & alu getting stuck together infact! (If like me you forget to re grease you post every now and again)

There are a couple of people who have had their carbon seatposts drilled out on this forum as the two carbon parts have stuck fast.

This can happen with Alu/Carbon, but less chance.

peter101cycle

Squillinossett wrote:

peter101cycle wrote:

Squillinossett wrote:

I used to have a carbon FSA jobbie, but when I got the new bike went back to Tompson. Two reasons.

The masterpice is:

A: Lighter than most carbon seatposts
B: Will outlive you, nevermind the bike. Never seen such well built parts.

Oh and....c: Its sex as hell in the flesh.

+1 for Thompson seatposts - used to have one on my old frame, thought about putting one on the Dolan but thought the carbon/carbon combo was safer for the frame seat tube

Less chance of carbon & alu getting stuck together infact! (If like me you forget to re grease you post every now and again)

There are a couple of people who have had their carbon seatposts drilled out on this forum as the two carbon parts have stuck fast.

This can happen with Alu/Carbon, but less chance.

I thought greasing carbon seat posts into a carbon frame was a no-no?

http://www.bikeradar.com/forum/viewtopic.php?p=14520269

Squillinossett

Ok, carbon assembly paste if you been picky

peter101cycle

Squillinossett wrote:

Ok, carbon assembly paste if you been picky

ROWL....must admit, I use zilch!

EX DH

++1 for the thomopson. Had on on both my Downhill bikes with zero problems.Going to change to one in the new year. Any one tried the road stem? was thinking of getting the matching pair.

Squillinossett

EX DH wrote:

++1 for the thomopson. Had on on both my Downhill bikes with zero problems.Going to change to one in the new year. Any one tried the road stem? was thinking of getting the matching pair.

I have not tried the road stem, but I did thve the x4 on my mountainbike, and it was my favorite part of the bike (if one can have such a thing)

Felt even better made than the seatpost.

FransJacques

peter101cycle wrote:

If it were me, I would not touch either with a bargepole......

For me, you should buy a branded carbon seatpost, as I would go with more security of how well-made it was.

You may be OK buying one of these, but if it fails catastrophically, you will have a real fall as the seatposts take a lot of stress and weight.

Depends how much you value your rear-end I guess.......
:shock:

Huh? What does brand have to do with it? What documented evidence is there of non-branded vs branded seatpost breakage? Broken seat posts are on the road are rare and franke are about the least worrysome issue you can have. Forks or handlebars? That's different. Unless you're going to use it as a pogo stick to hop across the UK both posts will be fine.

The first one looks really nice - kind of like an unbranded Bonty XXX lite. Go for it!

Monty Dog

I'd have no problems with the first one - the moulded body and clamp head design is pretty robust whereas the second has a bonded head/cradle - heavier and weaker. Frankly some of the previous posters are only exhibiting ignorance as to declaring Chinese made product inferior and I bet the vast majority ride 'big branded' bikes made where? All the broken posts I've seen were either due to crash-damage or over-tightening.

rake

i once bought a cheap carbon post off ebay for the bling factor. never again. it seemed like it was more of a thick plastic post with some kind of carbon finish over the top. it was probably heavier than a decent alloy one as well.

peter101cycle

Monty Dog wrote:

I'd have no problems with the first one - the moulded body and clamp head design is pretty robust whereas the second has a bonded head/cradle - heavier and weaker. Frankly some of the previous posters are only exhibiting ignorance as to declaring Chinese made product inferior and I bet the vast majority ride 'big branded' bikes made where? All the broken posts I've seen were either due to crash-damage or over-tightening.

At least with a "known make", you can at least make a judgement as to what the likely build quality will be.....plus, there is something around aftersales support, warranty, etc to bear in mind.

Anyway, the OP can make their own choice - if it were my money and my arse on the seat, I would not bother with these Taiwanese unbranded products.....but that is my choice.

Sorry for being ignorant by my previous post as you are obviously God-like in knowledge of everything bike

desweller

rake wrote:

i once bought a cheap carbon post off ebay for the bling factor. never again. it seemed like it was more of a thick plastic post with some kind of carbon finish over the top. it was probably heavier than a decent alloy one as well.

You do know, don't you, that carbon fibre parts are actually carbon fibre reinforced plastic? So they are actually mostly plastic?

rake

DesWeller wrote:

rake wrote:

i once bought a cheap carbon post off ebay for the bling factor. never again. it seemed like it was more of a thick plastic post with some kind of carbon finish over the top. it was probably heavier than a decent alloy one as well.

You do know, don't you, that carbon fibre parts are actually carbon fibre reinforced plastic? So they are actually mostly plastic?

i do know yes. i have a full carbon framed bike. i meant this post looked like they'd saved the expense of adding carbon and just used plastic. it got cracked on an mtb and couldnt see much carbon .

maddog 2

test of posts in this month's mag

Thomson are well built but you can get comfier posts for road work. The Spesh Pave posts are very comfy so I'd recommend those.

I run an older EC70 on my commuter which is tough and comfy.