Quicktips - How to remove a stuck seatpost.
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- เผยแพร่เมื่อ 7 พ.ย. 2017
- Stuck seatposts in carbon frames can and do happen. Here are some tips on what causes it, how to remove the post and how to avoid this in the first place.
Here is the link to Rohan's video showing the dry ice method: • Stuck dropper post
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Thank you! Great information as always
If you dont have dry ice. Use your C02 cartridges sinces it is effectively the same and very cold. Probably beats freeze spray.
I salute you sir. Thanks so much for this tip. I used 3 CO2 cartridges to cool the seat post than persuaded it with some firm blows with my hands... And presto. It came loose.
A can of freeze spray from your local hardware shop or plumbing supply a better option . Just use some foam pipe insulation as a sleeve and keep it cold. Kits are available.
could the grit in fiber paste abrade the anodized finish of a seatpost?
would promote corrosion?
or would a simple reapplication solve the problem?
If the inside surface of the frame is not precisely controlled as in a bladder molded frame how do they get the inside of the seat tube precise enough to fit the seatpost? Aluminium sleeve?
Did u just mentioned Guam? Im from Guam. Thanks for the video.
I've seen silicon spray, armour all.in fact used to penetrate and free a stuck ppst
Hi can you please share the video of the dry ice method?thank you
Happened to me..... freed the stuck post with the very, *very* gentle application of rubber mallet.....
Is galvanic corrosion a reaction between aluminium and carbon composite? Or is it just something aluminium does in the presence of moisture?
Galvanic corrosion is the corrosion of different materials on the galvanic scale in contact with an electrolyte, in simple terms a battery. Al and carbon are at different ends of the scale so the result is more than materials closer to each other.
This is something that goes around my head, as a track rider I'm very attracted to carbon handlebars, are they safe? there are a few like Easton EC90, Alpina, 3t scatto, look and the generic Chinese ones. If possible to make a review about them will be very good for the whole track community. Also track frames are supposed to be stiffer so, what would be the difference between track and road frames (if possible a cut up). Thanks for your great information.
Track stuff is usually built stronger as weight is not much of an issue. Good products should be safe to use.
My upper cap from the headset is stuck with the carbon fork after a crash. I already tried to "hammer" it out but it doesn't come off. I guess the upper cap is alloy or metal and the fork carbon. I also heated up the whole thing but it doesn't work... Any other ideas before I cut off the fork :-(?
Preventative maintenance? What a radical idea... How about a tip for working with (or replacing?) star fangled nuts????
To many it is a strange concept!
So, should we replace them? And if so, with what?
If you freeze the seatpost and frame, will the carbon not become brittle (and more vulnerable) during the operation to get the seatpost out?
Depending on the resin, yes, however if done correctly you should not have to force it, infact you should not force it anytime.
Simple way which worked for me is to turn bike upside down hold frame in hand and use decent sized rubber mallet and hit the setpost clamp under the seat preferably inline with the bolt.
I prefer not to hit a lightweight frame with any hammer.
@@LuescherTeknik only hit the seat clamp not frame just hold onto the frame in your hand why you hit the clamp with rubber mallet from underneath the seat.
Mines glued on is there anything I can do
I had a stuck aluminium post in an aluminium frame. Drilled hole through the post, put a LARGE nail in the post. One guy held the nail and two guys 'unscrewed' the frame from the post
I have seen that done as well.
What is best compound to use on a carbon seat post with aluminium frame?
Heating will expand the aluminium which will make it tighter, and over about 120 C depending on resin it could even be lower will damage the resin. I would avoid heat.
I was actually asking about assembly with carbon post in Alu frame, rather than trying to get a stuck post out. Is it best to use normal grease or a carbon paste. Opinions seem to be divided on this.
Crazy hands
The best way is to use brake fluid to loosen rust from the steel frame
Freeze it with office dust off spray
with the freezer technique, couldn't it loosen other aluminium parts like alu bearing seats and threaded inserts?
What are your thoughts on GCN's video on this, where they recommend pouring boiling water onto the carbon frame...
for anyone using the dry ice method, for the love of all things holy WEAR THICK GLOVES!!! (ideally leather gardening gloves). Dry ice is so cold it will freeze and stick to the moisture on your skin and give you a really painful cold burn!
Eli Douek You'd think the carbon frames would be rated to be ridden in the negative degrees...
Good tip, I haven't seen the GCN video, I don't want to nag everything they do, however hot wet is typically not ideal for epoxy.
With the inserts typically the adhesive bonding the inserts has enough flex to absorb the change, however it could disbond it if extreme. It would be possible to rebond it and save the frame, where if you can't move the seatpost or brake the frame trying it is a bigger deal. So could be the lesser of two evils.
Lots of variables with this, an aircraft flies at -50 C and then it can be 70 + C on the tarmac in the middle east.
Can I use a Dremel to cut it?
If you are careful, it's easy to cut too much.
I am 5' 6" is a 53cm to big for me?
Do carbon seatposts or steerertubes get stuck in carbon frames?
Yes, it happens. Mine is stuck, carbon in carbon. I can move it a little with a cork hammer, but I prefer not to. If I want to remove it, I can heat the carbon on the frame with a heatgun a little and remove it that way.
Yes, the clear coat can act as an adhesive and stick the surfaces together.
Hey, very interesting stuff in your channel.
I have 2 questions:
1. after your frame/part reviews and with your professional view: what is the quality of actual products
It kinda seems like there is always space for improvement?
2. do you think there is a huge difference between the generic chinese products and top brand stuff?
And an optional question:
If you had to choose between all composites, which one would you go for?
Thanks
There are lots of variable with manufacture, as with most things, however you bikes can be a bit like fashion, so cost does not always equal tghe best quality.
Thought unsaid quick 9 mins
...but how do you remove a stuck post!!
Very very important: If you use dry ice, do it outside. Alternatively, a very well ventilated shop. Stay alive!
Yes, good tip.
If your bike sits got more than a week. Take the post out. Done!!! End of story. Pshhh..
10 minutes of my life that I'll NEVER get back. HINT - before posting, WATCH YOUR VIDEO then DO IT AGAIN. Everything you said could have been done in 2 minutes.
Tjwtrumpet just out of interest, how did your recent TH-cam video presentation go? If you have never done one, please just move on & look at something else, the information contained is the important bit not anything else!😉
Its a little smelly even with deoderant.
Wow my dude alittle less talking and more doing. It's pretty obvious your not comfortable talking to the cam, should have practice prior to doing video thanks anyway.