Frozen Seat Post Revmoval Trick! Works Great!

[LI-ghtcycle]

Ok, so I have an electra mini-rod that I got cheap to fix-up and sell, but other than the normal things to spruce up a used bike, it also had a frozen seat post. I though, no biggie, I'll just heat it and hit it with Kroil penetrating oil. I did this over 2 days, still no progress. Then I decided since I had a spare seat post I would just do what ever it took to get it out, I put a bolt into the top and clamped it into a vice turned the frame and with a loud "creak!" I thought I was in business. After another hour or so fighting with it and the seat post just crushing into a weird shape, I realized that after cutting it down a little to the main tube size (the body is larger than the end where the saddle attaches) I could force in a 1/2" galvanized pipe! Now I was able to get serious with a large pipe wrench with cheater pipe attached for leverage. Well, the first time I didn't put the pipe in deep enough, left 1" at the bottom for fear of getting the post stuck by expanding it too much with the pipe, and then the post just started to buckle into a twist. I then pounded the pipe in further, and the act of distorting the post must have broke it loose some, because after another 20 mins. it finally started to move, and eventually came out!

Just wanted to share, and if anyone else has an easier way to do this I'm all ears!

Thanks!

 

[wheelbender6]

I had a similar situation. I inserted a hack saw blade into the post, sawed it lenghtwise, and eventually pried it out. Your method sounds faster.

 

[MadRhino]

Here, it's -15.2°C now, all seatposts are frozen!
Bring one inside, pour boiling water on the seat tube, and pull out the (still) frozen seatpost.

 

[LI-ghtcycle]

Here, it's -15.2°C now, all seatposts are frozen!
Bring one inside, pour boiling water on the seat tube, and pull out the (still) frozen seatpost.

LOL! True, I meant frozen as in rusted/jammed now that I have the original one out, I am amazed at how jammed it was! Not much rust in there really, but wow was it stuck!

 

[Solcar]

You probably thought of it if applicable, but did you try to pry the top slit-portion of the outer post tube open a little? Not sure if bikes seat posts even tighten that way these days.

 

[LI-ghtcycle]

You probably thought of it if applicable, but did you try to pry the top slit-portion of the outer post tube open a little? Not sure if bikes seat posts even tighten that way these days.

Yep, but unfortunately it was rusted way deep about as far down as the post goes near the BB, I haven't had too much experience removing seat posts, but I have never had one that was so fastened and after it finally did come out, I was amazed at how little rust it really did have!

You would have thought it was half rust and fused together as suborn as it was.