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PostPosted: Tue Feb 12, 2013 6:15 am 
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Joined: Mon Feb 07, 2011 1:14 am
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Location: Kuranda DH circa 1991
Pretty nice little video and handy technique:

http://vimeo.com/59399246


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PostPosted: Tue Feb 12, 2013 11:24 am 
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Location: Shrewsbury
merckx wrote:
Pretty nice little video and handy technique:

http://vimeo.com/59399246


Seriously, you have got to be kidding me :facepalm:

I've lost count of the stuck stems and posts I've removed but brute force is asking for problems, damaged headsets, scratched paint even bent frames. I saw someone try the seatpost in a vice and twist the frame off technique, end up actually bending the frame.

This takes between 30-90mins depending on the thickness of the stem or post and works every single time with zero stress or damage to the frame:

http://forum.ctc.org.uk/viewtopic.php?f ... em#p539519

Its the future :lol:


Last edited by Robbied196 on Wed Feb 13, 2013 11:25 am, edited 1 time in total.

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PostPosted: Tue Feb 12, 2013 2:41 pm 
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Joined: Tue Jan 31, 2012 11:54 am
Posts: 157
Location: Cambridge, UK
Yeah - that's a great method for seat post removal.

I use another method for removing stubborn stems from steel frames: remove the front wheel and front brakes, slide the forks into a bench vice (remembering to protect the fronts and backs with soft wood) and then you can use the handlebars as a lever (or a crowbar if the handlebars are not available or you think you might bend them) to shift the stem.

This has had a 100% success rate for me and I've never damaged anything doing it - Even the stem is reusable afterwards.

Good luck....


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PostPosted: Tue Feb 12, 2013 9:40 pm 
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Location: It's not easy being a dolphin.
Brilliant. Proper engineering. :lol:


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PostPosted: Tue Feb 12, 2013 11:19 pm 
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Joined: Mon Feb 01, 2010 8:57 pm
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I was working in a bikeshop and someone brought in a nice Pinarello with a stuck seatpost - he'd tried clamping the post in a vice and twisting the frame and nicely unpeeled the seattube - lovely helical peel, like a sardine tin


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PostPosted: Wed Feb 13, 2013 1:49 am 
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Location: Edinburgh
Not a lot of understanding of metal stress and fatigue going on there.


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PostPosted: Wed Feb 13, 2013 11:24 am 
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I wonder how many stuck seatposts are actually the wrong size. In 1970 or thereabouts I once pounded a 27mm or possibly even 27.2mm seatpost into a beautiful PX10. I didn't realise back then that French bikes took smaller seatposts. :facepalm:


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PostPosted: Wed Feb 13, 2013 12:52 pm 
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You can end up with the opposite problem, too.. Seatpostectomy and cleaning up in there afterwards can possibly turn 27.2 into 27.4. I used the same technique as Robbied196, but I had to cut four times, may have even been six, before it would separate.


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PostPosted: Wed Feb 13, 2013 2:47 pm 
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After reading this thread and the one linked to the CTC, I bet a few people will now be checking the insides of the seat tube of those lovely old frames they bought secondhand. :lol:


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