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TCR seatpost problems(5 posts)

TCR seatpost problemsfloydg68
Sep 8, 2003 1:55 PM
I have a 2000 TCR2. I replaced the stock seatpost with a Easton CT2. It worked beautifully until now. The post started creaking frequently and needed to be cleaned often. The last time I tried to take out the post I discovered it had seized inside the shim that is in the seat tube. I'm wondering if I can do without the shim without compromising strength and get a post that is 31.8, which is the inside diameter(measured with calipers) of the tube. I think the shim is there so that common size 27.2 post(that's the shim size) can be easily swapped. I want to make sure that it is not for additional reinforcement. It seems if you wanted to do that you would make the wall of that part of the seat tube thicker. Any thoughs would be helpful. I know that there are several carbon posts that are available in the 31.8 size, Easton, LP Composites to name two.
i've read and heard this is .....scrublover
Sep 8, 2003 7:54 PM
a viable solution, and it should cause no problems. going to the larger post size, that is. no idea if it'll cause any kind of potential warrantee problem in the future, though, but i'd suspect not. FWIF, i have a 2000 tcr team frame. used a carbon use post with the shim. no problems. i've heard to NOT grease the carbon post/seattube with an alu/carbon combo, and i didn't. maybe that's it? hmmm, but then it might sieze more. otoh, i now have a ti post in the frame/shim, with gobs of anti-sieze on it.
re: TCR seatpost problemsmtnb1kr
Sep 9, 2003 3:49 AM
I had the creaking problem also with this same frame. I replaced that funky stock shim with an after market shim. The stock one has grooves all around it, the new one is solid except for the clamp split. I also grease it. I've heard don't grease it, do grease it. Kind of like cranks everyone has an opinion, no two are the same. I do and it works.
No problem to dump the shim....DaveLobster
Sep 9, 2003 5:08 AM
One of my riding buddies bought one of the first TCR's (with a threaded fork) in early 2001 as a frameset. Since we built it from scratch anyhow, we used an American Classic 31.8 seatpost, in MTB length, and ditched the shim.

He is still using that post in that frame now, with no problems going on 3 years. And he's a big boy, well over 200lbs. So I think you should be ok. Also, be sure to clean out your seattube really well before you install the new post. -Dave
No problem to dump the shim....floydg68
Sep 9, 2003 2:46 PM
Thanks for the input. I'm considering another carbon post. I'm wondering now if the shim will help distribute the load when it is tightened? Also, the post sizes I see that are available in carbon are 31.6 so I don't know if I'll be able to get the clamp tight enough. Any thoughts?