Aluminium corrosion in a carbon frame?
Moderator: robbosmans
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- Posts: 829
- Joined: Tue Jan 13, 2009 2:35 am
Probably not.
I had a Cannondale System 6. There was a ton of corrosion where the carbon and aluminum tubing met at the BB. I rode it for several years like that, with the corrosion continually worsening. It was still going strong after 8 years, until I got hit by a car.
I had a Cannondale System 6. There was a ton of corrosion where the carbon and aluminum tubing met at the BB. I rode it for several years like that, with the corrosion continually worsening. It was still going strong after 8 years, until I got hit by a car.
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pictures?
unless the cf has been damaged (al corrosion product takes up more volume) it should be ok
cf/al interface can suffer from galvanic corrosion if moisture gets in, the al loses
you can apply some acf-50 to treat the corrosion and held prevent it worsening, re-apply every year or so, more often if it's ridden in wet weather a lot
unless the cf has been damaged (al corrosion product takes up more volume) it should be ok
cf/al interface can suffer from galvanic corrosion if moisture gets in, the al loses
you can apply some acf-50 to treat the corrosion and held prevent it worsening, re-apply every year or so, more often if it's ridden in wet weather a lot
Are you the original owner? If so, I would see what Bianchi might do for you, regardless of whether it's still under warranty or not.
Colnago C64 - The Naked Build; Colnago C60 - PR99; Trek Koppenberg - Where Emonda and Domane Meet;
Unlinked Builds (searchable): Colnago C59 - 5 Years Later; Trek Emonda SL Campagnolo SR; Special Colnago EPQ
Unlinked Builds (searchable): Colnago C59 - 5 Years Later; Trek Emonda SL Campagnolo SR; Special Colnago EPQ
I had similar galvanic corrosion on the rear dropout of my Colnago C40. In that case, with the corrosion affecting structural integrity of the frame, I had to have the dropout replaced with a new steel hangar. Not cheap, but the frame was much improved. In your case, this aluminum cable guide/insert is not structural...you can probably treat it as described above and then continue to enjoy the frame for years.
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