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 Post subject: how would i fix this
PostPosted: Tue May 07, 2013 8:53 pm 
Dirt Disciple

Joined: Mon Mar 18, 2013 9:46 pm
Posts: 40
hi guys looking on ebay . and saw this frame . it has a small hairline crack on the left handside bottom side of the headtube. how would you fix this


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 Post subject: Re: how would i fix this
PostPosted: Tue May 07, 2013 9:39 pm 
Retro Guru
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Joined: Sun Mar 17, 2013 10:25 pm
Posts: 1262
Needs a new head tube


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 Post subject: Re: how would i fix this
PostPosted: Tue May 07, 2013 11:15 pm 
Section Moderator & South West AEC
Section Moderator & South West AEC
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Joined: Mon Jun 25, 2007 3:33 pm
Posts: 8163
Location: new forest
while i am not a fan of repairing aluminium (my view is to bin it) the best way would be to drill a small hole at the end of the cracks then have the frame welded up properly, then smoothed out to look better aswel as then facing and reaming the headtube.


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 Post subject: Re: how would i fix this
PostPosted: Tue May 07, 2013 11:24 pm 
Retro Guru

Joined: Wed Dec 10, 2008 9:19 am
Posts: 2095
Location: Sheffield, top city
Jubillee clip round it. Don't laugh ... a mate did that to his alu Bianchi and rode it for a few years as a winter bike. It looked a real bodge and was a constant source of ridicule tthough


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 Post subject: Re: how would i fix this
PostPosted: Tue May 07, 2013 11:43 pm 
Section Moderator & South West AEC
Section Moderator & South West AEC
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Joined: Mon Jun 25, 2007 3:33 pm
Posts: 8163
Location: new forest
personally i wouldn't be happy with re-welded aluminium let alone the bodge of a jubilee clip, while i accept some people are happy with that kind of bodge i think you're asking for trouble.


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 Post subject: Re: how would i fix this
PostPosted: Wed May 08, 2013 8:40 am 
Retro Guru
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Joined: Wed Apr 25, 2012 2:08 pm
Posts: 2186
Location: Shrewsbury
Most likely that crack has been caused by a heavy impact. If the forks aren't available with the frame that would be another sure sign, they're probably bent like a banana. They maybe other problems with the frames alignment that are not going to show in the photos. I'd say one for the local tip, scrap metal dealer.......or Ebay :facepalm:


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 Post subject: Re: how would i fix this
PostPosted: Wed May 08, 2013 2:59 pm 
Dirt Disciple
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Joined: Sun Jan 08, 2012 1:09 pm
Posts: 50
Location: philippines
Robbied196 wrote:
Most likely that crack has been caused by a heavy impact.


would an ill-fitting cup forcibly pressed also cause that?


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 Post subject: Re: how would i fix this
PostPosted: Wed May 08, 2013 5:30 pm 
rBoTM Winner
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Joined: Tue Apr 25, 2006 12:06 pm
Posts: 1443
Location: Vienna, Austria
diditte911 wrote:
Robbied196 wrote:
Most likely that crack has been caused by a heavy impact.


would an ill-fitting cup forcibly pressed also cause that?


Thing is, you wouldn't really find an ill-fitting cup, most are set to a standard. Have you tried wacking a 1 1/8" cup into a 1" tube? you kind of know it's going bad quite early on.


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 Post subject: Re: how would i fix this
PostPosted: Wed May 08, 2013 6:25 pm 
rBoTM Winner
rBoTM Winner
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Joined: Wed Dec 12, 2012 10:18 pm
Posts: 2373
Location: California
I like the repair solution Jonny suggested, and if it were my frame I might take a whack at it, but I would never BUY a frame in that state.


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 Post subject: Re: how would i fix this
PostPosted: Wed May 08, 2013 8:03 pm 
Retro Guru

Joined: Sun Aug 22, 2010 7:07 pm
Posts: 1321
Location: Cotswolds
Certainly would not buy it, but what is the worst that can happen while riding it? Probably a gradual loosening of the bottom head cup, nothing remotely dangerous. If the front forks break just above the fork crown then you are face into the tarmac. Nothing like that.


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