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Is there a such thing as Black rotors?

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Is there a such thing as Black rotors?

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flag bdease91
Posted: Nov 16, 2011 at 20:53 Quote
i know that they have them for motorcycles, just wondering if they make them for bicycles as well.

COMEPLETELY BLACK, not just the middle
flag Ploutre
Posted: Nov 17, 2011 at 14:11 Quote
You mean that ?

Unsecure image, only https images allowed: http://moodle.student.cnwl.ac.uk/moodledata_shared/cdx%20etextbook/dswmedia/images/carbonCeramicDisc.jpg
If so, these are Carbon Ceramic discs, which would be completely useless on bikes. These actually start to properly work at like 500°C. A bit like brake pads with sintered and organic: you need to heat up a bit the pads in order to have the sintered pads work at their best.

And I doubt it would be efficient on a DH bike Smile
flag bdease91
Posted: Nov 17, 2011 at 17:55 Quote
yeah something like that but for a bike, i know theres tons of discs painted black in the middle, was just wondering if theres any that are entirely black for my DJ
flag pbuser102331
Posted: Dec 3, 2011 at 14:59 Quote
No as the black would rub of on the braking area.
flag mitsu13gman
Posted: Dec 5, 2011 at 15:21 Quote
Ploutre wrote:
You mean that ?

Unsecure image, only https images allowed: http://moodle.student.cnwl.ac.uk/moodledata_shared/cdx%20etextbook/dswmedia/images/carbonCeramicDisc.jpg
If so, these are Carbon Ceramic discs, which would be completely useless on bikes. These actually start to properly work at like 500°C. A bit like brake pads with sintered and organic: you need to heat up a bit the pads in order to have the sintered pads work at their best.

And I doubt it would be efficient on a DH bike Smile

Actually, those are the Porsche Carrera GT's brakes, and they are vice-grips at -10F. The newer carbon-ceramic materials are COMPLETELY different from the stuff they used to use in F1. There's a guy on MTBR who was doing machine work with the stuff and made a set for his bike. He estimated that a 160mm rotor in that size would be overkill even for the most intense downhill use.


The downside? Based on material costs alone, his set would have been ~$1500 PER WHEEL!! Eek

But with the big DH sleds topping $10k, perhaps they're not that far out...
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