replace carbon seatpost with alloy

radiation man

my trek 1.5 has a bontrager carbon seatpost which is nearly seized up is it wise to replace it with alloy or should i leave it

dennisn

radiation man wrote:

my trek 1.5 has a bontrager carbon seatpost which is nearly seized up is it wise to replace it with alloy or should i leave it

Get it out of there and re-greased before it seizes completely.
FWIW, my take on the whole carbon post thing is that you need to keep up on the re-greasing.

cougie

Nearly seized up ? Surely its either seized or its not ?

I take my post out to fly with the bike once a year and that stops it seizing up on me.
If you have problems - mark the saddle height with insulation tape on the seatpost for easy reference, and make sure to take the post out every month or so ? You can use special carbon compound on it too - that may help but I need to use hairspray on mine to get it to stick.

I'd not buy a new seatpost.

daviesee

Alloy posts stick too.

Just something to think about..........

Anonymous

I have just brought some of this not tried it yet:

http://www.wiggle.co.uk/p/cycle/7/Finis ... 360038013/

Not too expensive.

radiation man

does this grease only work with carbon stem and carbon frame or does it work also with carbon seatpost and aluminium frame

dennisn

radiation man wrote:

does this grease only work with carbon stem and carbon frame or does it work also with carbon seatpost and aluminium frame

I think i would grease just about any combo of materials. Even same materials.

cougie

My seatpost slips in a carbon frame unless I use the hairspray on it.

Anonymous

I have since tried this:

http://www.wiggle.co.uk/p/cycle/7/Finis ... 360038013/

And after a quick 10 mile run it seams to have stopped my creaks & noises so worth a try if you are having problems. My seat post carbon and frame is ali. I will let you know if all is well after a 70 mile run at the weekend.

radiation man

just managed to get my carbon seat post out, and ill never fit one again this is the 2nd time its happened and last time i ended sawing on the inside of the seat tube with hacksaw blade, iive only ever had this trouble with carbon, it says not to grease carbon, everything what touches carbon seems to destroy it. back to alloy.

redvee

I've swapped mine mainly because the carbon wrapped one was in line and the alu one is a tradition micro-adjust with 2" setback. I greased it before insertion even though its an alu frame and alu post.