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Discuss light weight issues concerning road bikes & parts.
- Posts: 325
- Joined: Tue Apr 17, 2012 11:20 am
Last edited by Causidicus
on Tue Jun 17, 2014 11:55 pm, edited 1 time in total.
- Posts: 887
- Joined: Tue Dec 23, 2008 2:57 pm
- Location: NYC
...the jagged-ness of the lines are consistent with actual cracks, not peeling/flaking pain or scratches. So now the question is , how did this happen? What kind of frame/fork is this? Just curious, does your burke do a lot of roof rack miles? Seems strange that cracks would be in same place on both fork legs? I would initially guess over-torquing your skewers but then it appears that the cracks may be far enough rom your dropouts that there is another explanation..EM3
- Posts: 8
- Joined: Thu Aug 29, 2013 11:41 pm
Frame/forks is a 2013 Wilier Centro 1 SR. Bike has been on roof racks once, for a grand total of about 45 minutes. Skewers are just tightened to firm, nothing excessive.
It has been suggested that the paint has cracked where the fork tips are bonded to the bottom of the forks from general flexing.
- Posts: 489
- Joined: Thu Mar 26, 2009 11:06 pm
- Location: Yorkshire - God's Own Country
Prob is just paint due to flexing as you suggest. Still wouldn't ride it until checked.
- Posts: 418
- Joined: Sat Nov 10, 2007 9:51 pm
how come the material around the fork tip has broken away as well in photos 3 and 4, maybe the fork tip has become unbonded and is cracking the paint from flexing inside the fork leg ?
- Posts: 2696
- Joined: Wed Jan 22, 2014 11:48 am
- Location: Vienna Austria
Carbon fork I guess? Sand off the paint and check the matrix for cracks. If none present, cover with white electrical tape or re-paint
- Posts: 8
- Joined: Thu Aug 29, 2013 11:41 pm
The internal frame that the bike sits on in my bike bag has sharp edges where the forks attach and covers more surface area then the front wheel normally would. I have only used it for one interstate trip but it was enough to crack the paint as shown in the photo. I don't believe the two are related though.
- Posts: 247
- Joined: Thu Jul 14, 2011 10:10 pm
Don't ride it. Sand it down to matrix, or better get fork x-ray
- Posts: 78
- Joined: Thu Dec 12, 2013 9:48 pm
Wilier will give you a new fork if you have a valid warranty.
- Posts: 432
- Joined: Sun Jun 17, 2012 3:15 pm
I'd say it was paint, they probably mask off the dropouts at that point for the first spray then do the rest afterwards. That's solid carbon there, if it gave way you'd probably know about it sooner rather than later. Get it replaced under warranty though, on principle if nothing else.
- Posts: 357
- Joined: Fri Jan 31, 2014 4:54 pm
Stripping down the paint before talking with manufacturer, I believe is a bad idea. It can void your warrant.
Just go your local LBS of the brand, or send them the photos and learn the warranty process.
Also, I wouldn't ride that bike until everything is fixed.
- Posts: 105
- Joined: Sat Nov 02, 2013 10:17 pm
Willier will warranty that.
I wouldn't ride it.
- Posts: 232
- Joined: Fri Sep 17, 2010 4:48 pm
I disagree with the seemingly prevailing idea that it's cracked carbon.
The dropouts are solid aluminum and are probably 2-3" long with a majority of that material inside the hollow carbon fork. Aluminum bends, even thick aluminum. Paint does not bend. My guess is that the point at which the paint cracked is where the carbon ends and the aluminum begins. Perhaps there was some flex that caused the paint to crack... who knows. I doubt there's anything wrong with the bike and that it's unsafe...
All that said, I'd certainly have a rep look at it for possible warranty.
- Posts: 1386
- Joined: Tue Sep 11, 2012 6:07 pm
- Location: The Lone Star State
I'm not an expert on carbon, but from my experience, I would err more on the side of a paint crank vs. broken carbon. That being said, I would let an "expert" at your LBS make that determination. I can tell you that I once had a similar experience with my old Madone, and Trek looked at it, before determining that it was a crack in the paint at a joint, and did not effect the structural integrity of the bike (it was later warrantied for other reasons). I think your next step is to take it in and have it looked at.
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