That is you seat tube, so it’s not replaceable like your seatpost is.
That’s a decent dent. A bike shop would likely say this is unsafe. I would personally ride it but monitor it for cracks or changes. I wouldn’t trust my kids strapped to it though.
spleeble on
The problem with that seat tube is that it’s loaded in compression and if it breaks it will fail all at once. So you’ll be crashing with a jagged aluminum tube right underneath you.
If that was the down tube or if the bike was steel I probably wouldn’t worry about it, but on an aluminum frame it’s not worth the consequence, even if the chance of it breaking is super small.
owlpellet on
So here’s what I would do.
You carefully measure where you want the seatpost to be. Forever.
You get a really long seatpost.
You cut the seatpost so it’s at the correct rise but juuust up to the bottle mount.
You grease the bottom of the post and you jam it in there. Rubber mallet or something. Keep it straight.
If this works, you ride it forever. If it doesn’t you have a very long seatpost in the parts bin and you start shopping for a matching frame to move everything onto.
4 Comments
I was about to say, that bike was clamped.
That is you seat tube, so it’s not replaceable like your seatpost is.
That’s a decent dent. A bike shop would likely say this is unsafe. I would personally ride it but monitor it for cracks or changes. I wouldn’t trust my kids strapped to it though.
The problem with that seat tube is that it’s loaded in compression and if it breaks it will fail all at once. So you’ll be crashing with a jagged aluminum tube right underneath you.
If that was the down tube or if the bike was steel I probably wouldn’t worry about it, but on an aluminum frame it’s not worth the consequence, even if the chance of it breaking is super small.
So here’s what I would do.
You carefully measure where you want the seatpost to be. Forever.
You get a really long seatpost.
You cut the seatpost so it’s at the correct rise but juuust up to the bottle mount.
You grease the bottom of the post and you jam it in there. Rubber mallet or something. Keep it straight.
If this works, you ride it forever. If it doesn’t you have a very long seatpost in the parts bin and you start shopping for a matching frame to move everything onto.