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Zero Gravity Brakes Install......

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Zero Gravity Brakes Install......

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Old 09-13-07 | 07:14 PM
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Zero Gravity Brakes Install......

I think we should have a main FAQ thread for installing 0g's since they can be tricky to install, especially for an amatuer.


Anyway, so I got a used set and they arrived today. After fighting with them for almost an hour I decided to just bring them to the LBS, I needed more cable housing anyway. They installed them, even the tech had some trouble, and I was on my way.
The problem is, when set up correctly, there is alot of travel in the brake levers, even with the barrell adjuster unscrwed to the max. There doesnt seem to be any other way to adjust the pad closer to them rim, the cable must be pinched at a specific point or the arms do not close equally.

So I was thinking, maybe I could pot a small washer on the inside of the arm(between the brake pad holder and the arm). Does this seem like it could work? Anybody try this? Could it some how cause a malfunction?

Edit: It worked!

Last edited by Electric_Elvis; 09-13-07 at 07:36 PM.
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Old 09-13-07 | 08:12 PM
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Originally Posted by Electric_Elvis

The problem is, when set up correctly, there is alot of travel in the brake levers, even with the barrell adjuster unscrwed to the max. There doesnt seem to be any other way to adjust the pad closer to them rim, the cable must be pinched at a specific point or the arms do not close equally.
Not on mine.
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Old 09-13-07 | 08:20 PM
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my zg's with campy chorus shifters stop better than my dura-ace brakes
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Old 09-13-07 | 08:59 PM
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Originally Posted by onkey
my zg's with campy chorus shifters stop better than my dura-ace brakes
I am running mine with 105 9sp shifters and kool-stop pads, and other then the extended travel of the brake lever they work just as good as the ultegra 6500 brakes I had before.

The extra washer seems to have taken care of the problem, i'll give it a test run tomorrow. I have 05-SS version 0G's, so maybe its a problem specific to this version.
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Old 09-13-07 | 09:52 PM
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Maybe it's the installation.

They're tricky to install but it's possible to do them properly. Adding a washer to adjust the clearance is not the answer.
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Old 09-13-07 | 10:58 PM
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Got mine installed fairly effortlessly...centering them is the trickiest part and it took me several attempts to get it right.
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Old 09-14-07 | 05:32 AM
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I installed mine in a matter of minutes, never had any problems with them. You are turning the little lever on the brake so that it points towards the outside of the brake right?
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Old 09-14-07 | 08:07 AM
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Originally Posted by LowCel
You are turning the little lever on the brake so that it points towards the outside of the brake right?
Yes, you are talking about the "cam quick release lever".

I got these used, and I have a feeling that they may need to be serviced by 0G. Possibly a new spring and some lube. Maybe the problem with the brake lever travel could be from the brake not being as "tight" as it should be. A little wear here and there I guess could it cause them to not operate as well.

Has anybody had 0G's wear out, or had experience with them after several years and thousands of miles?

Edit: I tinkered around with them some more, I think the rear bolt going through the brake was to tight, I loosened it up and regreased it. Seems like the bolt was causing the rear brake to bind, not allowing it to open completley. The rear seems to be working better now, but I called up 0G anyway and they said they could take a look at them. I think they may be worn a bit and that is making them especially difficult to get installed and working correctly.

Last edited by Electric_Elvis; 09-14-07 at 02:57 PM.
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Old 09-14-07 | 03:35 PM
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No problem with the front brake. When I first installed the rear I had a half inch too much cable casing which prevented the caliper from self centering. Shortened it up a tad and they center and stop great. I was initially concerned about the size of the cable retaining screw and washer, I thought it may allow the cable to slip. After a couple thousand miles I no longer have any concerns. I'm sure you will get it sorted out. Bone
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Old 09-14-07 | 04:44 PM
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Look on the ZG website. They have a full tutorial for installation.

You should pull the cable as tight as you can, though. Whether they pull evenly or not should not be dependent upon that.

However, ZGs are pretty finicky. If you get them right they work spot-on, but it takes a little while to get there.
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Old 09-29-07 | 08:16 AM
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UPDATE:

I called up 0G and they advised me to send the brakes to them to check out. I just got them back yesterday, and they are like brand new brakes, all of the hardware was replaced, and they installed new pads!
I havent actually used them yet, but I put them on the bike yesterday and they seem to work MUCH better. There is still the tineyest bit of slack in the rear brake lever, its gotta be the housing/cable, but its so small I think I can live with it and just leave it alone for now.

0G is really awesome, they charged me nothing, returned the brakes for free, and were very quick about it. There cusomer service is excellent, and I would definatly recomend there brakes!
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