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Discussion Starter · #1 ·
I've been riding with this carbon seatpost for about 5 months. I would make sure to tighten the seatpost before every ride, but noticed no matter how tight I got the seat post it would migrate down a few mm after riding in some bumpy terrain. The seatpost would lose bits of carbon after each ride.

I guess it's time to go back to what I have owned for years that has never caused me trouble... my Thomson seatpost.
 

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Tacx Dynamic Paste. Worked awesome for me although my carbon post would creak and it drove me to get a Thomson Masterpiece. Now its quiet and I'm happy.
 

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Another Thomson Fan

When I was building my dream singlespeed, I thought of all those who struggled with slipping seatposts. I also remember the scratch a good friend of mine got when his carbon seatpost joined the ranks of all those that have shattered unexpectedly. (Fortunately the scratch ended up on his chest and not lower down!)

I found my Thomson Masterpiece Seatpost on ebay and its now one less thing to worry about. Afterall, singlespeeds are supposed to be simple, maintenance free, bikes (even if they might get more expensive and extravagent than our suspended bikes).
 

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Valve lapping compound works also , available at your local auto parts store .
 

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Self-defeatist
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I'm too fat for carbon but FWIW, checking torque is much more important than tightening.
 

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Discussion Starter · #8 ·
CLONG said:
I'm too fat for carbon but FWIW, checking torque is much more important than tightening.
checking torque while tightening is even more important. ;)

you're right though... I should check to see the torque for sure.
 

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EXORCIZE
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I run a Kent Eriksen ti post and love it. Layback or straight, 27.2 or 30.9, and your choice of length and King-matching colors. I had Kent do a custom 420mm length for my leggy self. Light, strong, comfy, blingy yet low-key, super easy to adjust, and no slippage problem. Lynskey makes a 31.6 ti post.
 

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Ryder1 said:
I run a Kent Eriksen ti post and love it. Layback or straight, 27.2 or 30.9, and your choice of length and King-matching colors. I had Kent do a custom 420mm length for my leggy self. Light, strong, comfy, blingy yet low-key, super easy to adjust, and no slippage problem. Lynskey makes a 31.6 ti post.
Ah yes, yet another reminder that I still do not own my dream post;) Too sexy!
 

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Juanmoretime said:
Tacx Dynamic Paste. Worked awesome for me although my carbon post would creak and it drove me to get a Thomson Masterpiece. Now its quiet and I'm happy.
Tacx has been great on my EC90 post. It's good to have around if you're going to use carbon.
 

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boomn said:
Ah yes, yet another reminder that I still do not own my dream post;) Too sexy!
bahahahaha

Please do not tell me that you actually spend good minutes of your life dreaming about a seatpost?

There is no problem with carbon seatposts unless you are 120kg plus or too much of a tightarse to buy a torque wrench (or a ritchey torque tool thingo for about $20). Some form of carbon paste should always be used, just as you would grease a metal seatpost.
 

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Ryder1 said:
I run a Kent Eriksen ti post and love it. Layback or straight, 27.2 or 30.9, and your choice of length and King-matching colors. I had Kent do a custom 420mm length for my leggy self. Light, strong, comfy, blingy yet low-key, super easy to adjust, and no slippage problem. Lynskey makes a 31.6 ti post.
Do you notice small bump dampening with the straight post? I've wondered about the relative benifits of carbon vs ti for that, as well as lay back vs straight.
 

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C Dunlop said:
Please do not tell me that you actually spend good minutes of your life dreaming about a seatpost?
Only to mess with your mind:D Actually I only have an SS bike right now, so upgrading a seatpost that I barely use is way low on my priority list
 

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Also it's seems to be harder to keep the same tolerance for the post's diameter with carbon, you get a much tighter tolereance with alum or ti. So the carbon may be just slightly smaller and just can't be clamped properly.
 

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Ryder1 said:
I run a Kent Eriksen ti post and love it. Layback or straight, 27.2 or 30.9, and your choice of length and King-matching colors. I had Kent do a custom 420mm length for my leggy self. Light, strong, comfy, blingy yet low-key, super easy to adjust, and no slippage problem. Lynskey makes a 31.6 ti post.
After using both, I would say ti will hold up better in the long run and also provide a more forgiving ride on a hardtail.
 

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rojogonzo said:
Do you notice small bump dampening with the straight post? I've wondered about the relative benifits of carbon vs ti for that, as well as lay back vs straight.
In switching between my ti post and an aluminum one (Salsa Shaft), the difference is noticeable - especially on continually rough trails and longer rides. But note that I run MUCHO post extension and have a rider weight of about 200 pounds. I've read posts by lighter riders and those who use less post extension who feel little or no difference.

Also, it's different than a carbon post, IMO. I've never used a CF post off road, but when I replaced the aluminum post on my road bike with a CF post, the difference was more one of "quieting" of road noise, as opposed to small bump dampening.

I ride very rocky trails, and don't have a FS rig, so I think its worth it.
 

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max_29
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cracked carbon seatpost

I'm not a heaviest one, just under 170, and had a carbon seatpost cracked on my rigid 29er after having it ~ 1 year. probably it was over-tightened, but those anti-slipping pastes could not keep a post in place.

switched to easton 90 (or 70) alu. slightly heavier, but no slippage.
 

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after seeing a friend's carbon seat post shatter while she rode over RR tracks, I will never have a carbon post. Bike was a 2 year old, high end Trek.
 
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