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 Post subject: Alpha ceramic rotors
PostPosted: Mon Dec 05, 2016 12:41 am 
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Joined: Wed Apr 08, 2009 5:23 am
Posts: 575
Location: Olympic Nat'l Park, WA
Anyone tried these yet?
https://www.alphamotocicletas.com/en/po ... -rotor-rs/


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 Post subject: Alpha ceramic rotors
Posted: Mon Dec 05, 2016 12:41 am 


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Mon Dec 05, 2016 2:05 am 
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Joined: Sun Nov 06, 2016 9:49 am
Posts: 30
I haven't, but there's a lengthy discussion about them on Bikerumor here:

https://www.bikerumor.com/2016/11/18/al ... ke-rotors/

If anyone has come across a review of one please post it up as I'm curious as well.


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Mon Dec 05, 2016 3:49 pm 
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Joined: Tue May 02, 2006 12:24 pm
Posts: 599
Location: Prague
I should get them in mail soon

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Ellsworth Truth = 9371g


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Tue Dec 06, 2016 1:07 am 
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Joined: Sun Feb 14, 2016 10:34 pm
Posts: 172
Location: Sweden
marecej wrote:
I should get them in mail soon


Please post a review when you've tried them out! :beerchug:

I took a chance back in the day when the Kettle SiCCC rotors was released and that was probably my worst cycling related purchase ever haha.. So hoping these are way better!

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 Post subject: Re: Alpha ceramic rotors
PostPosted: Tue Dec 06, 2016 5:36 am 
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Joined: Fri Jul 23, 2004 8:24 pm
Posts: 2195
Location: Houston, Texas
Gullholm wrote:
when the Kettle SiCCC rotors was released and that was probably my worst cycling related purchase ever

Hopefully you only took the bait once - I gave them the benefit of the doubt through 3 different iterations. While I will admit the final batch of rotors and proprietary pads had good braking qualities, the rotors were far from true and had rubbing issues with both TRP Spyre SL mechanical and Shimano XTR M985 hydraulic calipers.

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 Post subject: Re: Alpha ceramic rotors
PostPosted: Tue Dec 06, 2016 5:49 am 
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Joined: Sun Nov 06, 2016 9:49 am
Posts: 30
marecej wrote:
I should get them in mail soon


Nice, is this for your new MTB build? Any other details on the build you can share (or is there a thread on this I missed)? Looking forward to your impressions of these rotors.


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Tue Dec 06, 2016 12:23 pm 
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Joined: Tue May 02, 2006 12:24 pm
Posts: 599
Location: Prague
don't worry guys, I'll post my impressions, but it won't be until spring
yeah, it's for my new mtb, I still don't know if the frame I chose will ever be born so there is no real info to post yet (but I may start a thread when I get more interesting parts delivered) :-)

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 Post subject: Re: Alpha ceramic rotors
PostPosted: Tue Dec 06, 2016 9:14 pm 
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Joined: Tue May 02, 2006 12:24 pm
Posts: 599
Location: Prague
so, the weight is spot on, 2x160=80 :)

Image

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 Post subject: Re: Alpha ceramic rotors
PostPosted: Wed Dec 07, 2016 1:03 am 
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Joined: Wed Apr 08, 2009 5:23 am
Posts: 575
Location: Olympic Nat'l Park, WA
I was hoping for a sacrificial early adopter. I'm ceramic-rotor-shy, having been burned by both Kettle and Wren pieces of $#*&


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Wed Dec 07, 2016 3:07 am 
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Joined: Tue Apr 22, 2008 4:31 am
Posts: 364
I've seen them, but keeping my wallet full at the moment.

The key aspect is the pads to use with them.

The Kettle/SiCC experience showed that specific pad were required for the best results, yet Alpha are quite vague as to what pads are to be used.

I'll standby to standby.


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Wed Dec 07, 2016 7:07 am 
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Joined: Tue Oct 24, 2006 2:15 pm
Posts: 233
I will jump on them if the results is good.


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Thu Dec 08, 2016 5:06 pm 
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Joined: Wed Jun 03, 2015 10:16 am
Posts: 38
Wow, they are not too expensive :oops:

I'm tempted for my road bike equipped with disc brake. That would be 160 g saved, for USD 135.00. Not too bad. It would look good on my carbon tubular wheels 8)

EDIT: ordered! I'll report on performance and logistic. Ordering was not easy as it is in Spanish.


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Thu Dec 08, 2016 8:52 pm 
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Joined: Wed Jan 18, 2012 4:23 pm
Posts: 892
Location: Midlands, United Kingdom
Wow, saving 160g means you are rocking some pretty heavy discs right now!

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 Post subject: Re: Alpha ceramic rotors
PostPosted: Fri Dec 09, 2016 9:44 am 
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Joined: Wed Jun 03, 2015 10:16 am
Posts: 38
I knew 160g saving would be shocking :shock:

Let me explain. First, my road bike is set with 160 mm discs. I use JuinTech hydro/mechanical brakes and they recommend 160 mm for max efficiency (and I ride in the Alps, so I need efficiency). For now, I just use the disc that came in the JuinTech box, about 120 g each.
By the way, I really love the JuinTech brakes, they are very powerful. You get the power of the Hydro and the convenience to be cable actuated (by regular Shimano ultegra levers).


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 Post subject: Re: Alpha ceramic rotors
PostPosted: Thu Dec 15, 2016 3:11 pm 
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Joined: Wed Jun 03, 2015 10:16 am
Posts: 38
Received today! Very happy about that. On the other hand I've sent 2 emails w/o response from them. Not so happy about that. Which means I don't really know which pads to use. I'll just give a try with my organic pads. Remember, this is my road bike, so not as critical as in MTB. And roads are pretty much frozen at the moment here so I need to be very careful when breaking, I'll not be able to really test the full power of the breaking yet, just a first feedback on "is it pure crap or not" :lol:

Apart from that, so far so good. Quality seems very good: flat, round, precise cut, 1.9 mm thick as announced.


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 Post subject: Re: Alpha ceramic rotors
Posted: Thu Dec 15, 2016 3:11 pm 


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