i just bought a pair of fulcrum racing one wheels to fit to my bike which has carbon dropouts, however the quick release skewers which come with the wheels carry a warning that they are not to be used on carbon dropouts. i have several other skewer sets including hope and mavic, but i'm now worried that they may not be compatible either, does anyone know of a carbon specific skewer? my dealer is in touch with fulcrum, but of course the whole of italy is on holiday at the moment. many thanks in advance for taking the trouble -cheers
Cycling Equipment · Public discussion
skewers for carbon dropouts
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- Cycling Equipment
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- 9 August 2005
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- 12 August 2005
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- paul t
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I'd think you could contact the manufacturers on this issue--that would probably be your best bet. With more fork makers going to all carbon, it seems like this should be a consideration in skewer design as well. Let us know if you find out anything, as I'm sure there are plenty of others out there with the same questions!
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yes i've already contacted USE - the guy there was not prepared to guarantee that their skewers were carbon-safe, so i am working my way through the manufacturers at the moment, but this does raise concerns. i notice that chris boardman in the july edition of pro-cycling is riding fulcrums on a carbon fondriest but not with fulcrum skewers! problem is i can't identify the skewer. cheers
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You can use any skewers as long as you file the teeth off of the surface that contacts the dropouts.
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artmichalek said:
You can use any skewers as long as you file the teeth off of the surface that contacts the dropouts.
One should also then pay attention to serrated teeth and other nasties on the hubs.
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erm, it's all starting to sound dangerous
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Interesting stuff... Maybe carbon dropouts aren't such a great idea?
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paul t said:
erm, it's all starting to sound dangerous
It's not. The teeth on most skewers and hub nuts are intended to bite into aluminum fork ends. While this doesn't serve any real purpose, it's not a problem because aluminum is relatively ductile. Carbon on the other hand is a lot more brittle, and will crack and delaminate around the points of the teeth. Material wise, carbon dropouts are stronger than aluminum ones. As long as the contacting surfaces are smooth, there's nothing to worry about. -
roger that, i've got hope skewers with a pattern of concentric circles as grips do you think that makes a difference? and it still doesn't solve the problem of the teeth on the hub
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yes but i'm rather stuck with 'em. i’ ve never heard of this problem before and there must be a lot of riders out there who are potentially ruining their bikes and their warranties
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paul t said:
yes but i'm rather stuck with 'em. i’ ve never heard of this problem before and there must be a lot of riders out there who are potentially ruining their bikes and their warranties
A possible solution might be getting four stainless steel washers and inserting them between the fork ends and the serrated skewer and hub.
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