Dan S Posted November 3, 2009 Report Share Posted November 3, 2009 (edited) They appear to be invented a few years ago, but today I saw them for the first time.Does anyone have a clue about:How good they brake?how do they sound?what pads are required to use these?what is the price?Where they can be found? Edited November 3, 2009 by Dan S Quote Link to comment Share on other sites More sharing options...
J.KYDD Posted November 3, 2009 Report Share Posted November 3, 2009 Im pretty sure tarty adam was running them a while ago on his Yabaa. Think he released a video of him riding them..If you could find that it'd be a pretty good judge of what they are like Quote Link to comment Share on other sites More sharing options...
forteh Posted November 3, 2009 Report Share Posted November 3, 2009 I seem to remember them being exceptionally noisy but working pretty well, also expensive Quote Link to comment Share on other sites More sharing options...
Muel Posted November 3, 2009 Report Share Posted November 3, 2009 They worked OK, but they had some stuff wrong with them. Adam was only running one on the rear, and isn't now so I assume that it didn't work very well?I'd stick to steel, you can bend them back. Quote Link to comment Share on other sites More sharing options...
Dan S Posted November 3, 2009 Author Report Share Posted November 3, 2009 Youtube Video -> ">" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"> Quote Link to comment Share on other sites More sharing options...
F-Stop Junkie Posted November 3, 2009 Report Share Posted November 3, 2009 There were some around a few years ago. Decent enough, but astronomically expensive, and required special pads that were hard to get hold of and very expensive.Heck, even alloy discs were too much... Quote Link to comment Share on other sites More sharing options...
Mat Smith!! Posted November 3, 2009 Report Share Posted November 3, 2009 That video sounds sooo wrong, its terrible. Quote Link to comment Share on other sites More sharing options...
Maladie Posted November 3, 2009 Report Share Posted November 3, 2009 I suspect they would work extremely well, seeing as they use carbon discs on F1 cars.But the downside to having massive breaking power, would obviously be the price tag Quote Link to comment Share on other sites More sharing options...
Luke Rainbird Posted November 3, 2009 Report Share Posted November 3, 2009 That video sounds sooo wrong, its terrible.Welcome to 90% of trials videos these days Quote Link to comment Share on other sites More sharing options...
forteh Posted November 3, 2009 Report Share Posted November 3, 2009 To work properly carbon disks need to be 400-600 degrees celsius, this is never going to happen on a downhill bike let alone trials Quote Link to comment Share on other sites More sharing options...
jsc Posted November 3, 2009 Report Share Posted November 3, 2009 The company I was doing my work placement on had some, as they were developing pads for them. They were soooooo easy to break! It was like snapping a rich tea biscuit I'm not sure if they are all like that!? Quote Link to comment Share on other sites More sharing options...
psycholist Posted November 3, 2009 Report Share Posted November 3, 2009 To work properly carbon disks need to be 400-600 degrees celsius, this is never going to happen on a downhill bike let alone trials All depends on the type of carbon fibre used. I'm guessing the stuff here is a highly abrasion resistant aerospace grade designed for parts of planes that need to resist friction rather than high temperatures. It looks like conventional CF, namely fibres held together with a polymer resin, so I'm guessing they'd have burned away before hitting the 400-600 degC range performance car brakes get to. I'd guess these get killed very quickly by XC or DH use... Quote Link to comment Share on other sites More sharing options...
durkie Posted November 3, 2009 Report Share Posted November 3, 2009 All depends on the type of carbon fibre used. I'm guessing the stuff here is a highly abrasion resistant aerospace grade designed for parts of planes that need to resist friction rather than high temperatures. It looks like conventional CF, namely fibres held together with a polymer resin, so I'm guessing they'd have burned away before hitting the 400-600 degC range performance car brakes get to. I'd guess these get killed very quickly by XC or DH use...also i'm pretty sure racecar rotors are carbon/carbon, not carbon/epoxy. worlds of difference. Quote Link to comment Share on other sites More sharing options...
N.Wood Posted November 4, 2009 Report Share Posted November 4, 2009 Tried a carbon ceramic rotor at a comp in Belgium, it was shite. No bite or hold. Quote Link to comment Share on other sites More sharing options...
tris Posted November 5, 2009 Report Share Posted November 5, 2009 Just read up about them on F1 cars. Apparently they're balls untill they heat up to a very high temperature (which on an F1 car takes a split second) and then the deceleration is phenomenal....So they're never going to be amazing on a trials bike, because they'll just stay too cool. Just get a bigger rotor for better braking Alpine Kit? haha or even Ti Quote Link to comment Share on other sites More sharing options...
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