Stuck seatpost – finally a DIY answer…

…if you have a lathe, a mill and can weld.

I’m really impressed by this build and I suspect you could get away without the lathe, mill and welding setup if you tried.

Very good. After going down the caustic soda route on a frame years ago, I can see the benefit of this approach, just so long as it truly doesn’t damage the bottom bracket shell.

I’ve taken out a number of posts. Best method i found was to turn the frame upside down and clamp the post in a vice, and use the frame as the leverage to force it to turn.

Alternatively, and this is the long drawn out method, is you cut the top off the post leaving a stump of a couple of inches and use a bare hacksaw blade to saw a line up the inside of the post till you are nearly through. Then grip a part of the post and twist to try to have the cut part fold in on itself.

In most cases the stuck corroded section causing the prob is only over a few inches and its never the whole post.

The prob is these bare alloy posts. The black coated ones seem to last longest between greasing

That was really pleasing to watch.
Would hitting downwards on the seatpost with a club hammer break the bond?

I’ve taken out a number of posts. Best method i found was to turn the frame upside down and clamp the post in a vice, and use the frame as the leverage to force it to turn.

That’s the way I did it and didn’t kill the dropper or frame.

Other way was to ride with the clamp loose for two weeks.

That’s the way I did it and didn’t kill the dropper or frame.

Other way was to ride with the clamp loose for two weeks.

If either of these ways worked…. It wasn’t stuck.

The Yorkshire bike mechanic (on youtube) made his plans for this available a couple of weeks back

Alternatively use theseatpostman

Or just do what this guy has done….. Seen in Belhaven Bikes – Colin said that the guy got used to it and so has taken the saddle and post off his other bikes too…..

Jesus, that bike stand looks a bit medieval and hefty, I’m sure that bit of paper towel is plenty protection for the frame.

Stirling Bike Doctor had one of those jigs in regular use whilst he was still working, never seen any frame damage or wrecked posts (that hadn’t already had someone cutting at it). If it was an issue people would have been talking about it long before now.

Jesus, that bike stand looks a bit medieval and hefty, I’m sure that bit of paper towel is plenty protection for the frame.

I would have thought it would be plenty in conjunction with the quite obvious large rubber jaw covers it has.

I bought an old butcher type bike off a bloke once for the other half.

Went to raise the saddle a little and all about 50mm of it came out in my hand.

The original was cut off down the seat tube and wasn’t going anywhere.

I complained to the bloke who essentially told me to do one. His wife was a vicar ffs!

All I could do was sign his address up to shit loads of junk mail and catalogues. 🙂

Never did get the post out. The bike is now a rusting trophy on our allotment shed.

Stirling Bike Doctor had one of those jigs in regular use whilst he was still working, never seen any frame damage or wrecked posts (that hadn’t already had someone cutting at it). If it was an issue people would have been talking about it long before now.

I wonder how many frames he ‘saved’ using his contraption? It was acquired by Iain at The Bike Works in Stirling where it’s continuing to see a good amount of use.

@a11y a good few I’d imagine.

If either of these ways worked…. It wasn’t stuck.

Well duh, that’s the point isn’t it?