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PostPosted: Thu Jan 30, 2014 3:21 pm 
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Joined: Sun Jun 17, 2007 6:56 pm
Posts: 639
Here are my CNC version weighed without pads.

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Posted: Thu Jan 30, 2014 3:21 pm 


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PostPosted: Wed Feb 05, 2014 4:57 pm 
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I've narrowed my brake options to these three because they're all similar in weight and price. Even though they're older versions, I'm considering the CB1 because they're compatible with Powercordz Swifts, and it would be the lightest overall setup.

So I would like to get some feedback on the overall performance of these brakes, and which might be the best option. I'm 100kg and where I ride is mostly flat. Thanks.

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PostPosted: Wed Feb 05, 2014 6:50 pm 
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Joined: Mon Mar 28, 2011 6:46 pm
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Location: Amsterdam
To be honest, I wouldn't go with any of those brakes, also considering your weight.
Save some money and buy something that actually will stop you.


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PostPosted: Wed Feb 05, 2014 6:52 pm 
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Really, none of these brakes will stop me? I know that the KCNCs can be flexy.

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PostPosted: Wed Feb 05, 2014 7:45 pm 
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Formerly known as wassertreter

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Location: Pedal Square
I can only provide a data point for the C7 (75kg and living in the Alps). You can ride all the descents, even with carbon rims, but when it's raining you have to be really careful and go slowly. You would not like to race them in the rain. For training and general riding around, they are ok, though.

One thing about them is that the bushing seize up over time, at least in my climate. So they don't open back up all the way. Don't read that as critique, though. They are very light, relatively affordable, and those are the compromises.

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PostPosted: Wed Feb 05, 2014 10:12 pm 
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Location: Amsterdam
I've ridden both KCNC C7 and Ciamillo Zero Gravity (70 kg and flat roads).
Of those two I preffered the Zero Gravity, as those are the "original" lightweight brakes, I don't know about the GSL.

The C7 brakes are very flexible, I changed them after 3 rides.

Both are nowhere compared to the EE and M5 brakes I use at the moment.


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PostPosted: Mon Feb 24, 2014 11:42 pm 
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Joined: Tue Dec 18, 2012 1:31 am
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CNC weighed exactly as claimed. Looked good too.

Unfortunately they weren't actually much good as brakes. The difference between these and Ultegra 6700 calipers, even with Swisstop pads in the PXs and regular Shimano pads in the 6700s, was night and day. I'm now running 7900 with stock Shimano pads and would never go back, despite the additional 97g.


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PostPosted: Mon Feb 24, 2014 11:56 pm 
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Joined: Wed Feb 05, 2014 3:24 pm
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My forged pair:
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PostPosted: Tue Feb 25, 2014 5:48 am 
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Hey Drainyoo, I'd search the other threads on these brakes for more opinions, lots of happy riders. I just received a TT frameset that came with one of the forged brakes stock on the rear and its a very good brake in my opinion in terms of power. The setup is a bit more finnicky than normal but once you get it setup it works well.

I'm coming from TRP 920s which had similar power but were easier to setup and adjust.


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PostPosted: Tue Feb 25, 2014 10:51 pm 
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Joined: Tue Jun 23, 2009 10:47 pm
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On the bike I just built for a neighbor we used the forged version. They were 243g and used on traditional width rims. They stop very well, I was impressed.


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PostPosted: Wed Feb 26, 2014 11:00 pm 
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NGMN wrote:
Hey Drainyoo, I'd search the other threads on these brakes for more opinions, lots of happy riders. I just received a TT frameset that came with one of the forged brakes stock on the rear and its a very good brake in my opinion in terms of power. The setup is a bit more finnicky than normal but once you get it setup it works well.

I'm coming from TRP 920s which had similar power but were easier to setup and adjust.



Thanks. I actually sold my Planet X brakes and I'm getting the KCNC C7s. I know that they're flexy, but I live in a pretty flat area.

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