Seatpost stuck in carbon frame

[MTY4000]

I want to adjust my seat post slightly on my road bike, however it appears to be jammed.

The frame is carbon and the seatpost is, I think, carbon wrapped around a aluminum post (rather than a full carbon seatpost).

Any ideas how I might free things up? I'm cautious about applying brute force if there is a smarter way to approach the problem.

[vwsurfbum]

no, Brute force! LOL

[Trooper2]

Things to try:
Remove bottom bracket and poor Coca Cola down seat tube and let soak like penetrating oil.
Finish line bicycle lubricants are all carbon fiber safe and they make a carbon fiber assembly lube you can use on it once remove to keep it from happening again.
Shock it with hot and cold water, drop some ice water down the seat tube from the B/B tube then hit the frame with very hot but not boiling water.

Not sure if these are carbon safe:
LPS1 lubricant sprayed down the seat tube. (it is aircraft and food safe).
http://www.lpslabs.com/product_pg/lubricants_pg/LP...

Ammonia.

You may still need some brute force. Remove wheels and saddle, clamp the seat clap in a vise and twist the frame for better leverage.

[Mr_C]

Unusual for a carbon to stick.

Is Freeway carbon safe?

[MTY4000]

Thanks guys, plenty for me to try there.

[ratbane]

Hammer time!!!

[Mr_C]

ratbane said:

Hammer time!!!

hammer it in to free it off but be careful you don't hammer it in and can't get it out...

[Rico]

Been here with alu in DH frames... pain in the a$$!!!

No advice specifically for carbon, but tapping around the frame/seatpost can help loosen it.

[Beyond Rational]

You could be the first to try a compressed air line into a bottle boss hole?

[Rico]

Beyond Rational said:

You could be the first to try a compressed air line into a bottle boss hole?

May I suggest filming said event and posting on here as well.

[MTY4000]

I like the compressed air line suggestion - good lateral thinking. But I think I'd rather be watching that on youtube or 'morons do the funniest things' than being on the front line of that one.

[nixaki]

the best stuff is chain lube, dont know if its carbon safe, but i've used it loads of times on my bikes when they get jammed, just squirt some around the clamp bit and leave it over night, in the morning it'll come lose