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 Post subject: Colnago CT1 repair
PostPosted: Fri Jan 11, 2013 5:40 pm 
Newbie

Joined: Thu Jan 10, 2013 6:46 pm
Posts: 4
Location: Clitheroe, Lancashire
Hello, new member here.
Recently discovered this website and loving it.

I was hoping for some advice on my Colnago CT1 frame, the rear dropouts have coroded as far as the actual insert into the carbon fibre frame. One side is okay the other looks bad and not sure if this is repairable. Has anyone had this problem and more importantly can it be restored?

Any replies will be gratefully received.

Thanks
Miles


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 Post subject:
PostPosted: Fri Jan 11, 2013 7:25 pm 
Gold Trader / PoTM Winner / RB Rider
Gold Trader / PoTM Winner / RB Rider
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Joined: Wed Oct 05, 2005 7:45 pm
Posts: 10942
Location: kent
take it to frame builder .


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 Post subject:
PostPosted: Sun Jan 13, 2013 5:41 pm 
Retro Guru
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Joined: Sat May 21, 2011 7:42 am
Posts: 283
Location: Glasgow (ish)
I've heard of this happening before (though only on forums). I've got a CT2 and my plan is this happens to mine, it'll go to someone like Burls / Pretorius and have the carbon rear end replaced with Ti. Won;t be original, but won't happen again...


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 Post subject:
PostPosted: Sun Jan 13, 2013 6:15 pm 
Newbie

Joined: Thu Jan 10, 2013 6:46 pm
Posts: 4
Location: Clitheroe, Lancashire
Thanks guys, I'm taking it to Atlantic Boulevard in Bury tomorrow which is fairly local to me.
Let you know how I get on.


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 Post subject: Re: Colnago CT1 repair
PostPosted: Sun Feb 10, 2013 11:57 am 
Retro Guru
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Joined: Thu Nov 01, 2012 3:09 pm
Posts: 542
Location: Rotterdam
Very common problem with all older Colnago frames (C40, some C50 and CT frames). Colnago just replaced the entire rear carbon section, but you can also have just the rear dropouts replaced by a carbon repair expert.


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 Post subject: Re: Colnago CT1 repair
PostPosted: Tue Feb 12, 2013 10:05 pm 
Old School Hero
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Joined: Wed Jul 27, 2011 10:13 pm
Posts: 223
Location: ulster
Yes i've heard of similar problems through a chum, Norris Lockley who used to build frames in Settle N yorks, and was UK distributor for the 1980's carbon TVT & successors RBE ,They had similar issues caused he said by a build up of salt corroding and a capillary action up into the stays.. he spoke to the factories in France about it and they could sort it at a cost.. those 2 companies have now gone and their bones formed Look And Time.. definitely a job for someone who knows carbon and layups.. will


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 Post subject: Re: Colnago CT1 repair
PostPosted: Tue Feb 12, 2013 10:15 pm 
Newbie

Joined: Thu Jan 10, 2013 6:46 pm
Posts: 4
Location: Clitheroe, Lancashire
Quick update,
I'm picking the frame up from the repair shop on Saturday, the lug has been beed blasted and re-built up with a composite material, then sprayed.
Apprantly the damage was not as extensive as first thought. Hopefully it will be okay.

Will post a picy.

Thanks guys


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 Post subject: Re: Colnago CT1 repair
PostPosted: Wed Apr 23, 2014 11:25 pm 
Dirt Disciple

Joined: Wed Apr 23, 2014 12:40 pm
Posts: 11
@Milesalex

I've recently got a C40 as a project with EXACT same issue.

Could you share your experience and perhaps a picture of the repair job?

My impression is that a good frame builder would be able to replace dropouts and smooth out corrosion whilst trying to spray and blend paint job.

Any tips appreciated. Thanks!


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 Post subject: Re:
PostPosted: Thu Apr 24, 2014 8:26 am 
Newbie

Joined: Thu Jan 10, 2013 6:46 pm
Posts: 4
Location: Clitheroe, Lancashire
I had the dropout repaired by Atlantic Boulevard in Bury, they used an industrial filler to replace the corroded layers and re-sprayed. This was the cheapest option and has been fine since, I never got a quote for replacing the dropout was on a tight budget.
I've rode about 5000 miles with no problems, apart from some paint coming of with the wheel skewers which is no surprise.

Hope this helps.....


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 Post subject: Re: Colnago CT1 repair
PostPosted: Thu Apr 24, 2014 9:58 am 
Retro Guru
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Joined: Sat May 21, 2011 7:42 am
Posts: 283
Location: Glasgow (ish)
Quote:
My impression is that a good frame builder would be able to replace dropouts and smooth out corrosion whilst trying to spray and blend paint job.


Don't think quite so simple - the good frame builder needs to have good experience with composite / Ti combinations or he might make a bodge. Bit like the time I dropped the ladder as a kid getting a ball off the roof and fixed it with wood glue. Luckily my dad was only 2 rungs up when it went...

A good Ti welder might not know enough about Composites and vice versa. The market for independent Ti / Composite combinations, outside of F1 / Moto GP type applications is pretty small. In fact someone like FTR who build Moto 2 bikes might be a good shout. I think they're based in the UK. Of course, they may not be interested, but may be able to point you in a good direction.

I'm not aware of anyone building Ti/Composite bicycle frames in the UK?


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