i just built my first singlespeed a few weeks back, and when i got the frame, the seatpost was already stuck.. i want to raise it a little bit, but i can't seem to get it out..

any ideas on how i can get it out??

use an allen wrench?

btw i have some constructive criticism on your bike if you'd like it.

https://www.sheldonbrown.com/stuck-seatposts.html

I had the same issue, and resorted to the same list. I have an aluminium seat post, and the frame and post galvanized. And thus I actually found that the Windex method worked best. At first I was skeptical, but I sprayed it in and around and still couldn't get it out. 24 hours later, it came out no problem. Just be sure you get it all off when you're done.

if you can hold it with something and knock it into the seat tube a little more you may free it up, worked with my friends old bike after giving it a good spray with wd-40.

fire away..

drill a hole in the seat post, then put a 10 foot rod in there for leverage.

kroil it.

definitely. leverage is pretty much 100% in getting a stubborn seat post undone.

oh and penetrating oil.. lets not forget that. none of that wd-40 either.

it sounds comedic, but I bet id' work.

Or weld some thing to it. Depending on if you want to salvage the post. etc.

WD-40 won't work, there are penetrating oils made for just this thing. I've found the key is to get the penetrant inside the seatube- pull the BB or put it in through a water bottle boss, keep the frame inverted for a night, then take off the seat, lightly clamp the post in a vise and turn the frame..it will slide right out.
You know what works best to break the bond between the post and the seatube? Coca-cola!

Agreed. WD40 is for general cleaning and removing water from electrical componants (WD = Water displacing). You want a spray penetrant like plusgas or duck-oil. You also get stuff called freeze and release spray. This has chilling agents in it that make the metal contract as they evaporate along with a penetrating oil to get into the gap resulting from the freezing process.

Failing that, a well equipped machine shop will have a slide hammer with an expanding chuck on the end (designed for pulling bearings out of engine casings) that will grip the inside of the seat post and allow you to hammer it out.

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use something called B'laster. good stuff

Ask the C&V forum, they have way more experience with this.

This thread is a bit old, just so you know.

true, but the OP seems to have vanished, so now we can bash on his bike.

Obviously the wrong size frame, I mean look at that saddle height!!!

And that brake lever placement, I mean to each his own I guess but at least go for a front brake if your only gonna have one

FYI here's the link to the PB Blaster. https://blasterchemical.com/display.cfm?p=50003&pid=4

That stuff rocks. Not just for un-sticking things. You have a rusty chain? Put it in a pie plate and spray the stuff on. Let it sit for a while. The rust will melt away. Don't get it on your clothes and it's smelly, think gasoline type smelly.

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