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-   -   Dent in seat tube. (http://www.bikeforums.net/bicycle-mechanics/936115-dent-seat-tube.html)

cnam 02-28-14 12:54 PM

Dent in seat tube.
 
http://i.ebayimg.com/00/s/NzczWDU4MA...TB6Ss/$_12.JPG

Just quick question. Looking for your opinion on this potential frame purchase, small ding on seat post seemingly from lock up. Damage seems minimal but wondering your guys thoughts on it were?

Edit: It's a Cinelli mash, an aluminum frame.

HillRider 02-28-14 01:50 PM

The dent is very minor and not in a critical location so the frame should be perfectly safe. That said, use it as a bargaining chip when negotiating the price. :)

Leebo 02-28-14 02:01 PM

Does it affect seat post?

badbikemechanic 02-28-14 02:22 PM

Quote:

Originally Posted by Leebo (Post 16536080)
Does it affect seat post?

Besides the aesthetics the frame is fine. However a dented frame can not be repaired (easily) and you should be able get a good price. I doubt a lock causde this, rather it was probably dented when he tried to lock up the bike since the dent is opposite the drive side.

JerrySTL 02-28-14 03:10 PM

You might even be able to get rid of the dent with a long metal seat post or tight fitting metal tube. Bevel the end of the tube a little and slide it down the seat tube. When you hit the dent, tap the tube or seat post gently to see if the dent comes out.

If you were really worried about the dent, you could leave a piece of pipe inside the seat tube as a doubler. Probably not needed though.

bobotech 02-28-14 03:32 PM

That is a fine place for a sticker. I agree with the others, a non-issue dent. However since I'm anal, I would probably try the seat post trick just to see if I could make it a tad better.

Tim_Iowa 02-28-14 03:50 PM

Quote:

Originally Posted by cnam (Post 16535879)
Edit: It's a Cinelli mash, an aluminum frame.

Since it's aluminum, don't mess with it. Bending it back out would fatigue the aluminum further. Aluminum isn't springy like steel; it fatigues when it is bent.

I agree that it's a minor dent, and can safely be ignored. Put a sticker over it. Just don't try to bend it back out; you'll make it worse. But definitely, use it to negotiate more $$ off this nice frame.

lopek77 02-28-14 04:35 PM

Quote:

Originally Posted by JerrySTL (Post 16536273)
You might even be able to get rid of the dent with a long metal seat post or tight fitting metal tube. Bevel the end of the tube a little and slide it down the seat tube. When you hit the dent, tap the tube or seat post gently to see if the dent comes out.

If you were really worried about the dent, you could leave a piece of pipe inside the seat tube as a doubler. Probably not needed though.

TERRIBLE IDEA! I almost guarantee more damage in this spot.

Kotts 02-28-14 05:14 PM

I agree that trying to take the dent out from the inside is a terrible idea. You could really screw up the tube on the opposite side, or turn that little ding into a wrinkle. It could be worked out, but it would take a real expert to do it without making things worse.


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