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 Post subject: Re: Carbon disc brakes
PostPosted: Thu Nov 17, 2016 7:41 am 
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bad kitty!
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If you can convince them to part with a pair, I'd happily run a few tests.
Having said that, this is getting old. They either have to accept that it requires carbon pads, or change the composite.
....but who knows, maybe they in fact did develop the composite, and this time around they in fact work with regular pads.

Magura :)

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 Post subject: Re: Carbon disc brakes
PostPosted: Thu Nov 17, 2016 8:47 pm 
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friendly kitty

Joined: Tue Apr 02, 2013 2:39 am
Posts: 118
Hiya,

As I'm still learning about the world of carbon rotors, can you explain why std pads don't work ?

Is it that the 'transfer layer' stuff doesn't work with the carbon rotors, and if so, why not ? Is it more about how the carbon/ceramic coated rotors operate ?

Love to know more.

I've hinted at testing a pair too, as Euro 200 is too rich for my budget at the moment

Edit : If there are any references that will provide some key knowledge (without assuming I'm a material scientist), I'd love to know. Having a google myself :ugeek:


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 Post subject: Re: Carbon disc brakes
PostPosted: Fri Nov 18, 2016 7:28 am 
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bad kitty!
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I would think the main issue they have with standard pads, is the porosity. Adhesion is an issue as well, so I'd think they need to up the SiC percentage.

The available info about this composite is fairly limited, as it's still pretty much cutting edge technology, and development is prohibitively expensive, so everybody tries to keep their knowledge to themselves.

Magura :)

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 Post subject: Re: Carbon disc brakes
PostPosted: Fri Nov 25, 2016 3:38 pm 
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friendly kitty

Joined: Wed Nov 13, 2013 11:38 pm
Posts: 290
Location: Indiana
Article on Bikeumor about a carbon ceramic rotor.

https://www.bikerumor.com/2016/11/18/alphas-ceramic-rotor-rs-superlight-spanish-carbon-disc-brake-rotors/


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 Post subject: Re: Carbon disc brakes
PostPosted: Sun Nov 27, 2016 3:08 am 
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lil' hucker

Joined: Wed Jan 30, 2013 2:10 pm
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Location: Cazadero Ca.
Interesting article, as were the comments.

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 Post subject: Re: Carbon disc brakes
PostPosted: Sun Nov 27, 2016 7:32 pm 
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bad kitty!
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Magura :D

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 Post subject: Re: Carbon disc brakes
PostPosted: Mon Nov 28, 2016 10:41 pm 
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friendly kitty

Joined: Tue Apr 02, 2013 2:39 am
Posts: 118
norton55 wrote:
Interesting article, as were the comments.


Agree, to a point. Most comments were uninformed and stoopid. A few sensible ones

Article was just a regurge or an advertorial. No testing or actual usage evidence.

Have contacted them for more info re pads that work, but have yet to hear a reply, or any feedback re how they work.

They had some major discounts, but discussion with those that know more, and past evidence from others seem that keeping the money in my wallet at the moment is most sensible.

Still standing by to standby. Just as I was with Kettle, SiC-rotors and anyone else as well ..... :thinking:


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 Post subject: Re: Carbon disc brakes
PostPosted: Tue Nov 29, 2016 7:05 am 
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bad kitty!
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I think standby is going to be my stance on this subject for a long time.
So far no one has made anything, that seems to have a fair shot at actually beating a $10 steel rotor on all accounts.

......then selling unobtanium rotors at $100+ gets a wee bit difficult.

Magura :)

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 Post subject: Re: Carbon disc brakes
PostPosted: Tue Nov 29, 2016 9:50 pm 
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friendly kitty

Joined: Tue Apr 02, 2013 2:39 am
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Well, that pretty well seals it for me. :hand:

Unless I get some to review (throughother connections), it seems like steel rotors are still the way to go.


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 Post subject: Re: Carbon disc brakes
PostPosted: Wed Nov 30, 2016 7:30 am 
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bad kitty!
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Seems like that yes.
I am though a bit disappointed that no one has managed to make it work yet.
For the trikes it would be outstanding to have the extra heat capacity, not to mention the low static friction.
I run my rotors yellow on regular basis on the trike, and have issues with the inner wheel locking up when using the brake for steering assist in a turn.

Time to go buy another few F16 rotors......... :D

Magura :)

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 Post subject: Re: Carbon disc brakes
PostPosted: Tue Jul 25, 2017 1:48 am 
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friendly kitty

Joined: Tue Apr 02, 2013 2:39 am
Posts: 118
Alpha have now "improved" their rotors, and it must be a huge leap fwd, as they now use the word 'ceramic' in the title :roll:

160mm Ceramic Rotor

Asked a couple of basic questions like what are the right pads, and what is different, but received a useless reply.

Would love to try them, but not willing to risk the 150 Euro when the supplier can't even tell me what pads and what is different. I know English is probably their second language, but ....


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 Post subject: Re: Carbon disc brakes
PostPosted: Tue Jul 25, 2017 5:51 am 
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bad kitty!
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Same as their usual version, just with ventilation holes drilled.
Doesn't make a whole lot of sense......

Magura :D

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 Post subject: Re: Carbon disc brakes
PostPosted: Tue Jul 25, 2017 6:06 am 
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friendly kitty

Joined: Tue Apr 02, 2013 2:39 am
Posts: 118
Magura wrote:
Same as their usual version, just with ventilation holes drilled.
Doesn't make a whole lot of sense......


Ah, but it has ceramic and lasts 30% longer.

Actually didn't last long at all before, so 30% more on SFA is still SFA ..... :whistle:


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 Post subject: Re: Carbon disc brakes
PostPosted: Tue Jul 25, 2017 1:52 pm 
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bad kitty!
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Till they start selling CSiC pads, that's the case.

Magura :)

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