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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 10-17-09, 08:50 PM   #1
sanfrancristo
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Painted carbon fork dropouts?

Just bought my first singlespeed bike (Cannondale '09 Capo) and am concerned about the assembly job from the bike shop. My question is what level of scraping of the paint on the fork dropouts from the tightening of nuts is acceptable? This has a Slice Ultra fork which I believe is all carbon (with aluminum steerer). My previous road bikes have had unpainted aluminum fron dropouts so I never had this issue before.

I'm wondering if the paint is likely to chip off much more, and if there any structural ramifications. Obviously the teeth have to have something to grab into, but the other side just has imprints without any real scraping (but perhaps that's only temporary anyway?) As the main reason I bought this bike was obviously for the frame and fork, should I take this back? (I can return if I like)

Also, besides the aesthetic issue, I planned on switching to a quick-release axle for the front - which now seems to me like an impossibility due the extra tightening/loosening. Does anyone have an opinion on using a quick-release on a painted drop-out?

Couldn't find any info on this specific issue after looking around for a while - thanks in advance for the newbie help!
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Old 10-17-09, 09:16 PM   #2
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Return your bike immediately, it was factory defect.
Cannondale had to recall all the bikes that show signs of this issue. The forks are prone to failing catastrophically.
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Old 10-17-09, 09:50 PM   #3
dbgray21
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it would probably be better to take it back to your LBS and show them the issue. they should be more than helpful with a minor and common issue like that...
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Old 10-17-09, 09:53 PM   #4
sanfrancristo
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Thanks for the response - that seems to settle that.

Would you say that I should expect that a painted carbon (or aluminum/steel for that matter) fork shouldn't scrape from the axle nuts? (In case I can exchange, or get something similar.)
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Old 10-17-09, 10:03 PM   #5
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there should be no paint flaking. and make sure they adjust the floating troll bearing in the bottom bracket while you're there. the first batch of 09 capos had that problem....
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Old 10-17-09, 10:31 PM   #6
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This is the customer that I hate at my shop.

(Also those drops are aluminum bonded into carbon legs.)
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Old 10-18-09, 01:21 AM   #7
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Return your bike immediately, it was factory defect.
Cannondale had to recall all the bikes that show signs of this issue. The forks are prone to failing catastrophically.
lol
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Old 10-18-09, 01:45 AM   #8
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Zipp

Zipp front track nuts are smooth...and expensive.

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Old 10-18-09, 01:55 AM   #9
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Originally Posted by sanfrancristo View Post
Just bought my first singlespeed bike (Cannondale '09 Capo) and am concerned about the assembly job from the bike shop. My question is what level of scraping of the paint on the fork dropouts from the tightening of nuts is acceptable? This has a Slice Ultra fork which I believe is all carbon (with aluminum steerer). My previous road bikes have had unpainted aluminum fron dropouts so I never had this issue before.

I'm wondering if the paint is likely to chip off much more, and if there any structural ramifications. Obviously the teeth have to have something to grab into, but the other side just has imprints without any real scraping (but perhaps that's only temporary anyway?) As the main reason I bought this bike was obviously for the frame and fork, should I take this back? (I can return if I like)

Also, besides the aesthetic issue, I planned on switching to a quick-release axle for the front - which now seems to me like an impossibility due the extra tightening/loosening. Does anyone have an opinion on using a quick-release on a painted drop-out?

Couldn't find any info on this specific issue after looking around for a while - thanks in advance for the newbie help!


It's paint. Paint is not a structural component. I think you need to read-up on bicycle maintenance. This should have zero effect on a quick release.
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Old 10-18-09, 02:09 AM   #10
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And you have to be careful with the aluminium rusting where the paint is damaged. That corrosion can spread to the carbon in the fork and deform the steering tube. Once that happens you get an ovalisation in the head tube and you need to re-face the head tube. If that fails then it's new frame time.
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Old 10-18-09, 03:35 AM   #11
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And you have to be careful with the aluminium rusting where the paint is damaged. That corrosion can spread to the carbon in the fork and deform the steering tube. Once that happens you get an ovalisation in the head tube and you need to re-face the head tube. If that fails then it's new frame time.
8 out of 10 for effort.
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Old 10-18-09, 03:48 AM   #12
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You have no idea how many forks I've seen come into the shop that have been destroyed from lack of dropout paint.
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Old 10-18-09, 07:20 PM   #13
sanfrancristo
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Thanks, someday I hope I'll know enough about bikes to be just as sarcastic to those who know less. BTW - the condescension is one of the things that causes many people to avoid visiting (and spending at) their LBS more.
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Old 10-18-09, 07:26 PM   #14
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Is Bikeforums an LBS?
Lots of BS? Yes
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Old 10-18-09, 07:35 PM   #15
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..
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Old 10-18-09, 11:10 PM   #16
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lolololololololololololololololololololololololololololololololol
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Old 10-19-09, 12:18 AM   #17
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lolololololololololololololololololololololololololololololololol
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Old 10-19-09, 08:22 AM   #18
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your nuts will cover it up. Thank God for nuts.
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