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PostPosted: Mon Dec 10, 2012 1:31 pm 
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Joined: Thu Sep 21, 2006 8:57 pm
Posts: 4183
Location: Vicenza
fdegrove wrote:
Those who think alloy rims don't lose pieces of metal should do a few rounds on a cyclo-cross bike. The european way if possible....


We're probably going a bit OT but so probably it's about wet rides?


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PostPosted: Mon Dec 10, 2012 2:38 pm 
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Joined: Mon Dec 14, 2009 6:26 pm
Posts: 839
OK I get the message. Alu brake tracks do wear down so the material must go somewhere I guess. It's just I've never heard of anyone saying they have damaged a carbon wheel that way. Clearly no one has taken the risk.

I'm one of those people that has never taken the risk. I don't regularly check my alu pads but have very occationally over the years looked at pads when replacing them and have not noticed any metal shards sticking out.


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PostPosted: Mon Dec 10, 2012 2:50 pm 
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Joined: Tue May 03, 2005 2:20 am
Posts: 5838
Location: Belgium
Hi,

Quote:
Clearly no one has taken the risk.


I'm sure some must have out of ignorance. Naturally it's something one brags about....


Quote:
We're probably going a bit OT but so probably it's about wet rides?


That most certainly will accelarate the process tremendously, hence the analogy.

All in all I'm really amazed we're even having this conversation. It's so blatantly obvious really. :noidea:

Ciao, ;)

_________________
Being a snob is an expensive hobby.


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PostPosted: Mon Dec 10, 2012 4:08 pm 
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Joined: Sat Apr 18, 2009 8:59 am
Posts: 708
Location: Surrey UK
For those who are considering running alu and carbon rims with the same set of pads:

http://www.flickr.com/photos/90178027@N ... hotostream" onclick="window.open(this.href);return false;"

_________________
Cervelo R5 VWD 5637g/12.43lb
Pronghorn XC SW Race 8284g/18.26lb


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PostPosted: Mon Dec 10, 2012 4:54 pm 
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Joined: Mon Dec 14, 2009 6:26 pm
Posts: 839
Blimey that would do some damage. Do you mind using them with a set of carbons to test the no swap theory?


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PostPosted: Mon Dec 10, 2012 5:31 pm 
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Joined: Sat Apr 18, 2009 8:59 am
Posts: 708
Location: Surrey UK
If only you send me your AX, if I remember well :wink:

_________________
Cervelo R5 VWD 5637g/12.43lb
Pronghorn XC SW Race 8284g/18.26lb


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PostPosted: Mon Dec 10, 2012 10:15 pm 
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Joined: Thu Jan 20, 2011 11:32 pm
Posts: 93
konky wrote:
Blimey that would do some damage.


Would it, though? Is aluminium harder than carbon?


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PostPosted: Mon Dec 10, 2012 10:57 pm 
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Joined: Mon Dec 14, 2009 6:26 pm
Posts: 839
Jokes aside

I've no idea if alu is harder than carbon but I would like to hear just one genuine anecdote of a carbon wheel being damaged by a pad that was previously used on an alu surface.

Is there anyone out there who has experienced that sort of damage.


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PostPosted: Mon Dec 10, 2012 11:39 pm 
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Joined: Tue Nov 11, 2003 9:47 pm
Posts: 2155
Location: Santa Cruz, California, USA
OK guys, you've busted us. It's all a big conspiracy to keep newbies from riding carbon and making them less elite, and us carbon rim owners less cool when we pose at the coffee shop. It's such an awesome conspiracy that we even got the rim makers in on it: they all warn users that using pads that have been used with alunimium rims will void the warranty. It's all a lie of course. You can use any old pad on carbon rims, and only the gullible think that carbon is softer than aluminium.

I'm ashamed to have been a part of it.


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PostPosted: Tue Dec 11, 2012 12:15 am 
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Tubbie Guru

Joined: Tue May 03, 2005 2:20 am
Posts: 5838
Location: Belgium
Hi,

I must confess to be part of that conspiracy as well. :oops:
Before you all go "Tu quoque fili mi" on me I'll hide behind the sorry excuse that I'm not alone on this:

Even the search engine dug up more guilty parties:

http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=3347&start=15

http://weightweenies.starbike.com/forum/viewtopic.php?f=3&t=86306

Big carbon goodie manufacturers :

http://www.eastoncycling.com/en-us/road/faqs/wheel-faqs/

Ya good ole Lennard:

http://velonews.competitor.com/2012/07/bikes-and-tech/technical-faq/technical-faq-carbon-brake-pads-and-campy-brake-modifications_230217

Another one of the usual suspects:

http://www.zipp.com/support/maintenance/wheel_care_88_188.php

Since it's all marketing anyway:

http://www.competitivecyclist.com/review-brakes/swiss-stop-brake-pads_71.html

They enjoy writing FAQs:

http://karbonspeed.com/faq.html

Nope, not a single shred of evidence. It is quite obvious not one soul has actually tried this out.

Of course the easiest way to convince yourself is to do the obvious and actually try it out: carbon rims are as cheap as dirt nowadays, funerals can be arranged in advance, heck you can even insure yourself against the odds....

Google only showed 10 pages. No evidence, of course, we covered our tracks. Still, I'll generously leave the other 9 pages for you all to read.... :P

Ciao, ;)

P.S. For those who wonder how hard it is to scratch a carbon fibre brake track: I've got a bag of nails for you.

_________________
Being a snob is an expensive hobby.


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PostPosted: Wed Dec 12, 2012 1:41 am 
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Joined: Tue Jun 07, 2011 4:28 am
Posts: 118
Location: Berkeley, CA
I built a carbon floor pan for a shifter kart a few years ago. The holes in it were very quickly enlarged from rubbing against the bolts which mounted it. Shards of metal in your brake pads are going to be doing essentially the same thing. It doesn't take more than a few minutes to change the pads anyway. Seems like cheap insurance to me.


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PostPosted: Wed Feb 06, 2013 10:31 pm 
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Joined: Thu May 04, 2006 4:43 pm
Posts: 5326
Location: Wherever there's a mountain beckoning to be climbed
CarbonSportsGmbH wrote:
HammerTime2 wrote:
CarbonSportsGmbH wrote:
Before we can give approval for usage of Black Prince pads in combination with Lightweight wheels, we have to do our own tests - both on road and in laboratory.
This will take some weeks. Until that only the Lightweight by Swissstop pads are allowed for Lightweights wheels to avoid a loss of warranty.
Has CarbonSports done any testing of the Black Prince pads yet?

We're still testing them.
Andreas, do you have test results yet? Thanks.


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PostPosted: Thu Feb 07, 2013 1:18 pm 
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Joined: Tue Jan 15, 2013 1:33 pm
Posts: 13
I have the new pads on my bike and I'm pretty sure they will reduce the life of your carbon rims dramaticly. Why ? Brake power is more powerfull then the yellow pads and some small grid can get stuck in the deeper groves like a small stones or other scharp debris.
But I rather stop then crash into a car or other things...


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PostPosted: Sun Feb 17, 2013 9:33 am 
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Joined: Thu Feb 03, 2011 2:28 pm
Posts: 383
HammerTime2 wrote:
CarbonSportsGmbH wrote:
HammerTime2 wrote:
CarbonSportsGmbH wrote:
Before we can give approval for usage of Black Prince pads in combination with Lightweight wheels, we have to do our own tests - both on road and in laboratory.
This will take some weeks. Until that only the Lightweight by Swissstop pads are allowed for Lightweights wheels to avoid a loss of warranty.
Has CarbonSports done any testing of the Black Prince pads yet?

We're still testing them.
Andreas, do you have test results yet? Thanks.


Not wanting to nag, but... any results yet?


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PostPosted: Sat Mar 23, 2013 4:41 pm 
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Joined: Thu Feb 03, 2011 2:28 pm
Posts: 383
Results?


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