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Is this seat post toast?

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Is this seat post toast?

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Old 09-27-24 | 02:55 PM
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Is this seat post toast?

I loaned this bike to a friend after his was stolen. He clearly lowered the seat post and it looks like the binder bolt was over tightened, as you can see the outline of the seat tube and the groove that allows tightening. It’s a carbon post. Can I still trust it or is it too risky?

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Old 09-27-24 | 02:56 PM
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if there is an indent in the crease, I would not ride it..
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Old 09-27-24 | 05:50 PM
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Nope it is a seatpost but you probably don't want to ride on it. You have worries and you might not want to ride it. It is hard to really see what is going on as the potential area of concern is out of focus and we cannot touch it and feel the area.
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Old 09-28-24 | 08:11 AM
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Perhaps the friend would trade you a new seatpost for that one ?
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Old 09-28-24 | 08:12 AM
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Based on the info given, I probably wouldn’t.
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Old 09-28-24 | 08:27 AM
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Originally Posted by Oldguyonoldbike
I loaned this bike to a friend after his was stolen. He clearly lowered the seat post and it looks like the binder bolt was over tightened
Unfortunately this looks like a case of no good deed going unpunished. Kudos to you for helping a friend, but I'd not want to trust that post and I'd give the whole bike a going over at this point.
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Old 09-28-24 | 08:38 AM
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yes and your friend should atleast know that carbon needs to be torqued per spec so that he does not damage another, ie need torque wrench.
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Old 09-28-24 | 02:25 PM
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Originally Posted by Oldguyonoldbike
I loaned this bike to a friend after his was stolen. He clearly lowered the seat post and it looks like the binder bolt was over tightened, as you can see the outline of the seat tube and the groove that allows tightening. It’s a carbon post. Can I still trust it or is it too risky?
With a fuzzy picture it's hard to tell but assuming those lines represent a depression in the post, it appears to indeed be toast.
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