Broken seatpost!

[Legs]

My seatpin has fallen apart! A few weeks ago, I was trying to take my seatpin out of the frame of my turbo bike (that old chestnut!), and when I twisted the saddle, I noticed that it turned without the seatpin moving... It's been a bit wobbly since, until it came completely apart as I sat down after a sprint effort this morning.

Is Araldite going to be up to a job like this? It's at the right height, so I don't mind if the repair isn't sufficient to ever get the seatpin out (forcibly twisting the saddle might break the new bond).

Just replacing the seatpin is an option, but only if I fly-press the tube because there's nothing to grip as it is. Then, I'd be banking on being able to get it out of the frame, which is by no means certain (because I'm an idiot and I probably haven't re-greased my seatpin for 20 years!)

 

[fossyant]

Get a new seat post. Drill the old one and put some bar across it to give leverage.

 

[Paulus]

New seat post time. And a bit of effort to get the old one out.

 

[Legs]

New seat post time. And a bit of effort to get the old one out.

This is the bit I'm nervous about...

 

[fossyant]

This is the bit I'm nervous about...

Better than it coming loose mid turbo session though !

 

[classic33]

Old innertube on the part that's still in place, then twist it.

 

[Big John]

If it's a turbo bike there's a good chance sweat will somehow have got down the seat post making it super hard to shift. It's buggered anyway so drill a hole in the post and stick a six inch nail thru it and use any decent pieces of pipe you may have on the nail ends. Twist like hell. It's bad enough with a seat to use as leverage but you ain't got one now. If the nail plan doesn't work then it can be a long drawn out series of alternative treatments. This could be a long thread 😟

 

[Legs]

It’s only been on the turbo for a couple of months. I’m feeling most inclined to Araldite it back together for now and see if that holds.

 

[Drago]

I’m feeling most inclined to Araldite it back together for now and see if that holds.

I can see your next thread being titled, "the night a doctor crawled up my bum with a miners lamp to remove a broken seat post."

 

[Paulus]

It’s only been on the turbo for a couple of months. I’m feeling most inclined to Araldite it back together for now and see if that holds.

Please don't.

 

[Yellow Saddle]

https://www.cyclechat.net/threads/p...tpost-sticking-in-a-steel-frame.174232/page-3

 

[biggs682]

It’s only been on the turbo for a couple of months. I’m feeling most inclined to Araldite it back together for now and see if that holds.

And when it doesn't hold how much notice will you get before being impaled with a seat post somewhere it shouldn't be

 

[Legs]

And when it doesn't hold how much notice will you get before being impaled with a seat post somewhere it shouldn't be

A few weeks. How do you supposed the two parts were bonded together beforehand? Sure looked like epoxy resin to me.

 

[ColinJ]

I can see your next thread being titled, "the night a doctor crawled up my bum with a miners lamp to remove a broken seat post."

And when it doesn't hold how much notice will you get before being impaled with a seat post somewhere it shouldn't be

A pal almost ended up with seatpost rectal surgery on a gnarly MTB descent ahead of me... He hit a big bump at speed and snapped the post in half, leaving a jagged aluminium spike just below where his saddle had been!!! Fortunately, he managed to stop without doing himself a nasty. I reckon it was probably a case of component weight-saving taken too far.

PS We were both shocked by the failure mode. We knew that carbon fibre can suddenly snap but would have expected aluminium to bend first.