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PostPosted: Thu May 18, 2017 3:54 pm 
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Joined: Sat Jan 15, 2011 9:59 pm
Posts: 206
Trying to get the old creaking bearings out that had been stuck in with medium strength loctite as recommended by Cannondale. Image
I had to brace the BB and when I'd pushed the wheels threaded BB in I realised there was a chunk out of the BB.
I'm devastated, I will continue to ride it until it's repaired in a week or so.
On close inspection it's more of a chip, I'll just keep a close eye on it and hope it doesn't get worse.

Any opinions, views, thoughts, help or advice is much appreciated!



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Last edited by tarmackev on Thu May 18, 2017 3:54 pm, edited 1 time in total.

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Posted: Thu May 18, 2017 3:54 pm 


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PostPosted: Sun May 21, 2017 2:49 am 
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Joined: Thu Aug 05, 2010 3:47 am
Posts: 63
I think if I had a CF bike I would put frame protection strips on places most likely to suffer damage, like this: http://www.chainreactioncycles.com/us/e ... prod148119


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PostPosted: Sun May 21, 2017 3:17 am 
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Posts: 4696
The chip looks like it's on the chainstay versus where the BB would interface with the frame. Just curious what you were doing when it cracked/chipped like that. I'm presuming the chipped area is where the frame was braced? Do you know which retaining compound was used? What tool were you using to remove the existing BB. Only advice upon removing something installed with retaining compound is to 1) use the right tool for removal, and 2) don't be afraid to impart a hard solid impact to break the bond. But if you're going to brace it, make sure the bracing point is supported evenly so as to spread the force from the impact over a larger area. Before reinstalling, use an exacto knife to scrape away remaining bits of hardened retaining compound from the BB shell.

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C59 Five Years Later
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PostPosted: Sun May 21, 2017 1:08 pm 
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Joined: Sun Mar 02, 2014 6:36 pm
Posts: 372
Location: NY USA
Is it being replaced under warranty?

If it was being serviced according to Cannondale's documented procedures, the crack is a factory defect.

Did you buy this bike new from an authorized dealer, and have you spoken to the dealer about this yet?

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PostPosted: Sun May 21, 2017 1:56 pm 
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Joined: Sat May 26, 2012 11:26 pm
Posts: 964
That looks like it has nothing to do with bb being knocked out, looks like a clearcoat chip imo.

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PostPosted: Sun May 21, 2017 4:49 pm 
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Joined: Mon Feb 05, 2007 5:39 am
Posts: 801
Location: Winnipeg Canada
As long as you have your receipt, warranty should cover.. My EVO cracked along the back of the fork drop out and in 3 weeks I had a brand new F/F


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PostPosted: Sun May 21, 2017 10:49 pm 
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Joined: Thu Mar 08, 2012 11:43 pm
Posts: 3311
Sorry to see that - but how on earth were you 'bracing' it that woud have resulted in damage there? :unbelievable:


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PostPosted: Tue May 23, 2017 12:53 am 
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Joined: Wed Jan 10, 2007 10:56 pm
Posts: 1386
Location: Canada
Just wondering why this would even qualify as a manufacturer warranty item. You clearly damaged it through your own actions.


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PostPosted: Tue May 23, 2017 9:18 am 
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Joined: Thu Mar 08, 2012 11:43 pm
Posts: 3311
BikeAnon wrote:
If it was being serviced according to Cannondale's documented procedures, the crack is a factory defect.

IMO I think it's pretty clear that it wasn't :shock:

Crazy the amount of people these days that think a warranty is the solution for abuse, neglect or incompetence. That's what insurance is for, not warranty.


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PostPosted: Tue May 23, 2017 10:26 am 
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Joined: Sat Jan 15, 2011 9:59 pm
Posts: 206
Not warrantying it, I was using a park tool bearing remover and the workshop tool that we use to brace a bb when two guys holding it in a stand doesn't work.
I'd say I've done well over a hundred BB30's, press fit bottom brackets and the only one that breaks.
Loctite 609 medium strength was used to hold the bearings in but it wasn't the bearings it was the cups. They were ungodly tight.
I'm guessing as it's a 2013 frame and they've never been removed that some bonding between the carbon and alloy had taken place.
The load was spread as evenly as possible around the bb area.
I've never had to use so much force to get press fit cups out.
Even using the correct tools and doing things as carefully as possible you get occasional issues.
It's really not a warranty as the frame didn't fail, it's just unfortunate circumstances.

The frame is now heading to be repaired, I'm sure it was fine to ride but I couldn't really live with it like that.


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PostPosted: Tue May 23, 2017 1:22 pm 
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tarmackev wrote:
...
Even using the correct tools and doing things as carefully as possible you get occasional issues...

This is so true. Sorry it happened to you. The good thing is that Loctite 609 does what it's supposed to do when properly applied, that is to hold the PF cups in place in order to prevent the awful creaking from movement. The bad thing is that there is some risk when removing the cups. I agree that it is awkward to brace the frame well enough to get a good solid hit on the cups, even with the proper tool. I do that job with the wheels on the bike, leaned over against a wall. It is a bit disconcerting to be hitting it that hard for sure, but it is what works for me. Alas, I miss the threaded BB's. I know, I know... I'm such a Luddite.

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C59 Five Years Later
My Special Colnago EPQ
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Posted: Tue May 23, 2017 1:22 pm 


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