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Black Spokes VS. Silver Spokes
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GYXU > Cycling > Black Spokes VS. Silver Spokes 22 March 2005 22:11:58

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Black Spokes VS. Silver Spokes

Jim 14 March 2005 01:12:26
 Hi,

I have been told that black colored spokes break much more often then
silver spokes. Is there any credibilty to this and if so why? I
currently have 700c wheels with less than 600 miles on them with black
spokes. I have broken two spokes so far. Should I have them all changed
out to silver or is that just a waste?



Jim
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Daveornee 14 March 2005 02:51:07 permanent link ]
 
Jim Wrote: > Hi,>
I have been told that black colored spokes break much more often then> silver spokes. Is there any credibilty to this and if so why? I> currently have 700c wheels with less than 600 miles on them with black> spokes. I have broken two spokes so far. Should I have them all> changed> out to silver or is that just a waste?>
Jim

Quality of the material and build will determine your answer. Color is
just that.
What brand of spokes are they?
Who built the wheel?
David Ornee, Western Springs, IL


--
daveornee

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Jim Beam 14 March 2005 06:19:09 permanent link ]
 Jim wrote:> Hi,>
I have been told that black colored spokes break much more often > then silver spokes. Is there any credibilty to this and if so why? I > currently have 700c wheels with less than 600 miles on them with black > spokes. I have broken two spokes so far. Should I have them all changed > out to silver or is that just a waste?>
Jim

possibly, but that would only be because the base material is inferior.
cheap black spokes appear to be laquered. good ones are dyed in a
process like anodizing for aluminum. afaik, these good black spokes
show no difference in fatigue properties from their silver parents.

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Werehatrack 15 March 2005 03:42:08 permanent link ]
 On Sun, 13 Mar 2005 21:12:26 GMT, Jim <JimsJnkMail@Netsca­pe.net> may
have said:
Hi,>
I have been told that black colored spokes break much more often then >silver spokes. Is there any credibilty to this and if so why? I >currently have 700c wheels with less than 600 miles on them with black >spokes. I have broken two spokes so far. Should I have them all changed >out to silver or is that just a waste?

Answer number one:

Black spokes and silver spokes of the same material and diameter will
have the same failure characteristics. You can't make your
competitors' spokes fail faster by painting them black, nor will
yours. That said, some of the black spokes I've seen are of
questionable design in other regards, particularly some of the bladed
ones which have stress riser points where the blade shaping
transitions to the round profile at the ends. Good spokes are good
not because they're silver or black, but because they're properly
made...and installed.

Answer number two:

Black spokes were really developed for stealth bikes that are used for
secret government surveillance activities, and they aren't supposed to
be sold to the general public. The ones you're buying are the rejects
from the black-bike manufacturers, and they're just crap. You need to
get the real ones if you want them to hold up, but you'll have to get
them on the Russian black market because the US makers aren't allowed
to sell the good ones to anyone but the NSA and the Skunk Works.




--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.
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Tom Sherman 15 March 2005 04:40:16 permanent link ]
 Jim wrote:
Hi,>
I have been told that black colored spokes break much more often > then silver spokes. Is there any credibilty to this and if so why? I > currently have 700c wheels with less than 600 miles on them with black > spokes. I have broken two spokes so far. Should I have them all changed > out to silver or is that just a waste?

Black spokes will gain more heat when exposed to solar radiation,
thereby speeding up corrosion and creep in the material. This will also
make tire blow-off when using rim brakes on steep descents more common.
However, they will be warmer during very cold rides if the sun is out,
therefore they are less susceptible to brittle fracture. ;)

--
Tom Sherman - Earth (Illinois)

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Werehatrack 15 March 2005 05:47:05 permanent link ]
 On Mon, 14 Mar 2005 18:40:16 -0600, Tom Sherman
<tsherman@qconline.­com> may have said:
Jim wrote:>
Hi,>>
I have been told that black colored spokes break much more often >> then silver spokes. Is there any credibilty to this and if so why? I >> currently have 700c wheels with less than 600 miles on them with black >> spokes. I have broken two spokes so far. Should I have them all changed >> out to silver or is that just a waste?>
Black spokes will gain more heat when exposed to solar radiation, >thereby speeding up corrosion and creep in the material. This will also >make tire blow-off when using rim brakes on steep descents more common. >However, they will be warmer during very cold rides if the sun is out, >therefore they are less susceptible to brittle fracture. ;)>
-- >Tom Sherman - Earth (Illinois)

Are you sure about that last statement? (The one that says Illinois
is on Earth...)

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.
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Squid-in-Training Phil 15 March 2005 07:55:16 permanent link ]
 jim beam wrote:> Jim wrote:>> Hi,>>
I have been told that black colored spokes break much more often>> then silver spokes. Is there any credibilty to this and if so why? I>> currently have 700c wheels with less than 600 miles on them with>> black spokes. I have broken two spokes so far. Should I have them>> all changed out to silver or is that just a waste?>>
possibly, but that would only be because the base material is> inferior. cheap black spokes appear to be laquered. good ones are> dyed in a process like anodizing for aluminum. afaik, these good> black spokes show no difference in fatigue properties from their> silver parents.

Chun-nan OEM spokes on late-model Specialized and Giant bikes are painted.
DTs are dyed. One can tell in the light, as the DTs glimmer brown in direct
sunlight, not black.

--
Phil, Squid-in-Training



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Alex Rodriguez 22 March 2005 22:11:58 permanent link ]
 In article <_02Zd.180068$JF2.3­4813@tornado.tampaba­y.rr.com>,
JimsJnkMail@Netscap­e.net says...>Hi,> I have been told that black colored spokes break much more often then >silver spokes. Is there any credibilty to this and if so why?

No.
I >currently have 700c wheels with less than 600 miles on them with black >spokes. I have broken two spokes so far. Should I have them all changed >out to silver or is that just a waste?

Unless the wheel is poorly built, no need to do this.
---------------
Alex

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GYXU > Cycling > Black Spokes VS. Silver Spokes 22 March 2005 22:11:58

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