Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Framebuilders Thinking about a custom frame? Lugged vs Fillet Brazed. Different Frame materials? Newvex or Pacenti Lugs? why get a custom Road, Mountain, or Track Frame? Got a question about framebuilding? Lets discuss framebuilding at it's finest.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-14-09, 08:02 PM   #1
Rocksteady
Senior Member
Thread Starter
 
Rocksteady's Avatar
 
Join Date: Nov 2007
Location: Metro Detroit
Bikes:
Posts: 181
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Am I cracked ??

Hi folks,

I have a Guerciotti sl frame that has small cracks in the paint and would like to figure out if the frame is cracked as well. I have taken the frame to 2 shops, one told me the frame was cracked and the other told me it wasn't.

Short of stripping the paint and examining the frame, is there a way to know whether a frame is cracked??

Here are some pictures.
I know its probably pretty tough to tell just by pics alone but I'd appreciate any input.
thanks



Rocksteady is offline   Reply With Quote
Old 06-14-09, 09:29 PM   #2
unterhausen
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Bikes:
Posts: 14,529
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Looks like you have a crack in the bottom bracket.
I'm guessing there is actually more of the crack on the drive side than on the non-drive side of the bottom bracket.

I don't see any cracking in the third picture. The first picture looks like the frame was whipped by a batch of little wires. I don't see anything that really looks like a crack there. Could be though.
unterhausen is offline   Reply With Quote
Old 06-14-09, 09:41 PM   #3
Rocksteady
Senior Member
Thread Starter
 
Rocksteady's Avatar
 
Join Date: Nov 2007
Location: Metro Detroit
Bikes:
Posts: 181
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks, Unterhausenther
There is a hairline crack that runs along the ridge of the lug where it connects to the headtube.

If the bottom bracket is cracked, Is it possible to repair it ?
Rocksteady is offline   Reply With Quote
Old 06-14-09, 11:50 PM   #4
unterhausen
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Bikes:
Posts: 14,529
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
If that is a crack in the third picture, it started on the back of the head tube and is propagating around to the front on the edge of the lug. Really hard to see it from here.

Can you take a picture of the drive side of the BB? You could replace the shell, that's probably getting into some $. I don't know if the crack can be tig welded shut, not my technology.

I'm wondering if this frame didn't take a serious front end hit in accident. Particularly since it seems to have a Colnago fork.
Although the damage looks to be more consistent with jumping the bike off of the garage roof.
unterhausen is offline   Reply With Quote
Old 06-16-09, 03:53 PM   #5
noglider 
aka Tom Reingold
 
noglider's Avatar
 
Join Date: Jan 2009
Location: West Village, New York City
Bikes: too many
Posts: 26,861
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Yes, that bike was in a front end collision at the least. I can't explain the crack in the bottom bracket shell, but the frame may be toast. You might be able to bend it back into shape, rebraze it, repaint it, but I'm not sure it's worth it.
__________________
Tom Reingold, noglider@pobox.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog

Please email me rather than PM'ing me. Thanks.
noglider is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 04:02 PM.