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stuck seatpost ...scenario # 4,392(6 posts)

stuck seatpost ...scenario # 4,392ignazio
Dec 10, 2003 12:35 PM
There must be thousands of posts concerning the above topic but here we go again. Trek oclv with a dura-ace post, installed two years ago, now stuck. Not so much frozen, but EXTREMELY difficult to budge. If I try really hard I can make it twist just a bit. I'm afraid of using too much force. I'm not replacing but came accross the problem when adjusting the height due to new saddle.

any suggestions on how to loosen things up?

Thanks in advance....
re: stuck seatpost ...scenario # 4,392took
Dec 10, 2003 12:40 PM
liquid wrench? not sure if there's any danger in getting this stuff around carbon...
Parrifin(sp?) waxhaystack
Dec 10, 2003 1:14 PM
You can buy this at a bigger grocery store that carries canning supplies. If you can slide the post up a bit, rub the wax on the post liberally. That should get things loosened up.

BTW, is the post the correct size?
Get some lube in thereKerry Irons
Dec 10, 2003 4:45 PM
I would suggest oil, since it will penetrate better. Run a bead of oil around the top of the seat collar, come back tomorrow, twist the post a bit, and repeat. It will come free pretty soon. This raises a question about the advice to not lube CF posts or frames. My assumption here is that while the post is not fusing to the CF frame, I assume that there is some surface corrosion on the post which is greatly increasing the friction. Does this frame have an Al insert in the seat tube? In that case, everything should have been greased on assembly and cleaned/greased annually. Sounds like it needed to be at least cleaned annually.
Nothing works well...lyleseven
Dec 13, 2003 8:35 PM
I tried all of the above when my carbon fiber seatpost seized and none of it worked. I tried a number of lubricants to no avail. Finally had to take it to a shop where it was forcefully pulled out (a major effort). I am afraid you will have to sacrifice the seatpost to get it out as mine was trashed in the process. Believe me, go aluminum next time as there is no real benefit to CF.
re: stuck seatpost ...scenario # 4,392SSC SL
Dec 16, 2003 12:26 AM
I had a post stuck once and tried all of the suggestions to no avail. I then tried a method I read about on the web that worked. Have someone hold your handlebars straight, place your foot on one of the pedals and rotate the saddle side to side until it moves. After movement, rotate and pull at the same time. Hopefully this will work for you.