overtighened seatpost clamp. damaged seatpost.

Discuss light weight issues concerning road bikes & parts.
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odin99
Posts: 187
Joined: Wed Feb 16, 2011 7:46 pm

by odin99

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picked up a used road bike the other day. was quite disappointed to find the seatpost was cracked from over-tightening the seatpost clamp. :( I can see the damaged fibers from inside the seatpost, so its pretty substantial damage. i'm bummed because it tips the scale at only 150g... shoulda checked the seatpost before i bought it (got a great deal... but could have talked him down another $50).


is this one completely trashed or can it be repaired? i'm guessing the repair not be worth the $?


suggestions on what to do with broken carbon parts? i also have broken carbon handlebars...

by Weenie


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mellowJohnny
Posts: 484
Joined: Thu Aug 16, 2012 12:56 am
Location: YYZ

by mellowJohnny

I would not ride it. Carbon parts loose strength by orders of magnitude when damaged. And they give no warning when they fail...

Get a new one...

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btompkins0112
Posts: 2693
Joined: Fri Feb 11, 2011 3:04 am
Location: Mississippi

by btompkins0112

You can use the busted post to make a cradle to use with the new post!

deermatt
Posts: 108
Joined: Tue Aug 09, 2011 11:46 pm

by deermatt

yeah, dont use that. You can get a brand new one from 6kcycles, mr.ride, omni racer or token for around 100 bucks, and weighing 100-120g.

bricky21
Posts: 1405
Joined: Tue Sep 14, 2010 3:28 pm

by bricky21

That's not necessarily due to over tightening, but it does look busted.

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anicomp568
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Joined: Sat Mar 23, 2013 11:39 pm

by anicomp568

It does not look so serious from this view, but if you can see damaged fibers inside, I would not also use it anymore
Shut Up Legs! (Jens Voigt)

mnmasotto
Posts: 620
Joined: Mon Jun 06, 2011 7:16 pm
Location: Irvine, CA

by mnmasotto

That seat post is shot. Not safe to use. Just replace it!

odin99
Posts: 187
Joined: Wed Feb 16, 2011 7:46 pm

by odin99

btompkins0112 wrote:You can use the busted post to make a cradle to use with the new post!



excellent idea!! I'll have to look up a thread where someone does this so i can have something to follow.

i won't be using the seatpost as a seatpost... it is toast.

Camilo
Posts: 361
Joined: Sun Mar 23, 2008 7:31 pm

by Camilo

It's worth a try to contact the guy you bought it from and see if he'll refund something reasonable. I'm assuming you think it was an honest mistake that he didn't disclose this damage and would simply like him to make a reasonable effort to make you whole on it. FWIW, I think this is a ruined seatpost and if he knew about it, that would be unacceptable and I'd be pi$$ed.... But I wouldn't necessarily assume he knew about it.

I bought a frame/fork from a guy and it included a headset stem and handlebar. As I was cleaning it up, I removed the handlebar and saw it had been crushed/dented under the stem faceplate. I sincerely don't think the guy knew about the damage. I contacted him and we agreed on a modest refund. (the handlebars weren't worth much, and the price I paid was fair even without the stem and bars).

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btompkins0112
Posts: 2693
Joined: Fri Feb 11, 2011 3:04 am
Location: Mississippi

by btompkins0112

Odin, just take some measurements....drill two holes and make two cuts annnnnd Bob's your Uncle!

by Weenie


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