If it’s aluminum, you could dissolve it with sodium hydroxide? But that’s pretty bonkers and given that dent on that frame, not worth it.
lecake27 on
Only the seat post is stuck. On the top end you can loosen a bolt to fit another saddle.
kiddredd on
I’m just looking at it, thinking, I want to try and get it out just as a challenge. But yes, a waste of time. Have you tried, yet? What’s to lose? The frame’s toast. I want to put two little pieces of wood on the seat tube with a bigass c-clamp and see if it rounds out, then pull the seat post out. Might, might not. But why? Time to part the bike out.
lrbikeworks on
The bike is a write off. Post and frame are both destroyed.
Also wtf is going on with the rear brake? You’re not stopping with the pads set like that.
pickles55 on
The frame is done for so you can go nuts trying to pull it out if you take want to keep it
ayyyyy on
I’m going to take a guess that the dent is just below the end of the seatpost. Have you tried penetrating oil?
12 Comments
Permanently is a strong word, but yes.
If you really wanted to you could get it out, but it’d be really hard. Assuming that isn’t an expensive bike I wouldn’t bother.
Have you tried getting it out?
Chances are that your seatpost isn’t as long that it’s affected by the dent.
But if it is actually long enough to be in the dented area then yes it’s “permanently” stuck.
What material is that seat post?
https://www.sheldonbrown.com/stuck-seatposts.html
If it’s aluminum, you could dissolve it with sodium hydroxide? But that’s pretty bonkers and given that dent on that frame, not worth it.
Only the seat post is stuck. On the top end you can loosen a bolt to fit another saddle.
I’m just looking at it, thinking, I want to try and get it out just as a challenge. But yes, a waste of time. Have you tried, yet? What’s to lose? The frame’s toast. I want to put two little pieces of wood on the seat tube with a bigass c-clamp and see if it rounds out, then pull the seat post out. Might, might not. But why? Time to part the bike out.
The bike is a write off. Post and frame are both destroyed.
Also wtf is going on with the rear brake? You’re not stopping with the pads set like that.
The frame is done for so you can go nuts trying to pull it out if you take want to keep it
I’m going to take a guess that the dent is just below the end of the seatpost. Have you tried penetrating oil?
I would try and roll the dent out using blocks.
This is the general method: https://www.youtube.com/watch?v=JTDeXG0kweA
A friend of mine was able to do this successfully using wood blocks he made himself, so I would probably try that before buying the metal blocks.
Good deduction good sir or maam.
I’d be surprised if the seatpost were that long. Vintage ones are pretty short.