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PostPosted: Mon Oct 07, 2013 9:43 am 
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Joined: Mon Sep 26, 2005 8:06 pm
Posts: 223
Whenever I have what I consider to be a really hard question, I always head over here...

The question is can 52/36 Q rings be run on a Quarq?

A 36t inner won't physically fit on a 130bcd spider, that much I know. So that means using a 110bcd. However, from what I have read and been told, a 110bcd Quarq requires the OCP3 version of Rotor's Q Rings. The "regular" Q rings don't fit onto a 110bcd spider.

That presents a second dead end, as Rotor don't make anything bigger than a 50t in OCP3 (at least that I've seen).

So the only compromise I can see is to use an OCP3 Q Ring 36t and a regular Q Ring 52t. But can that be done - in short, is the OCP3 stipulation for the 110bcd spider specific to both rings, or just the small one?

All insights and answers gratefully received...


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PostPosted: Mon Oct 07, 2013 11:07 am 
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Joined: Sat Jun 12, 2004 8:49 am
Posts: 2183
Location: Denmark
The OCP3 rings are only big rings, as there's no problems fitting the normal small rings on any crank. But yes, the OCP3 rings are only in 50/110 and 53/130.


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Posted: Mon Oct 07, 2013 11:07 am 


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PostPosted: Mon Oct 07, 2013 11:13 am 
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Joined: Fri Oct 21, 2005 4:08 am
Posts: 271
which crankset/crankarm do you have?


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PostPosted: Mon Oct 07, 2013 3:31 pm 
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Ahhh! So it's the big ring. Got it.

In answer to what I have, I haven't, yet. I'm trying to work out what Q ring combos I can put on 110 and 130bcd before deciding which way to jump between 110 and 130. I have 50/34 Q rings on a Quarq at the moment, having come from 53/39 three years ago. Ideally I had wanted to go to 52/36 Q rings on a Quarq, but that looks to be a non-starter.

The closest I can get with a 130bcd is 52/39.

The closest I can get with a 110bcd is 50/36.


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PostPosted: Mon Oct 07, 2013 4:15 pm 
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Location: Canada
I thought that the newer quarqs with Omnical eliminates these ring limitations. Those cautions are for the older model quarqs no longer in production.

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PostPosted: Mon Oct 07, 2013 4:34 pm 
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As I understand it Omnical allows you to swap the rings without having to send the entire unit back to South Dakota to be calibrated (or if you have a Wahoo thing that plugs into an iphone, recalibrating it yourself).

The OCP3 requirement for 110bcd is, and remains, a physical limitation, I think.


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PostPosted: Mon Oct 07, 2013 5:00 pm 
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I think you would find the 50T quite alright, especially if you get a cassette with an 11T cog. You'll have a bigger gear than a 52/12 and spend more of your time in the middle of the cassette when in the big ring.


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PostPosted: Mon Oct 07, 2013 5:14 pm 
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Greg66 wrote:
As I understand it Omnical allows you to swap the rings without having to send the entire unit back to South Dakota to be calibrated (or if you have a Wahoo thing that plugs into an iphone, recalibrating it yourself).

The OCP3 requirement for 110bcd is, and remains, a physical limitation, I think.

I thought that the electronics pod shape changed as well.

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Posted: Mon Oct 07, 2013 5:14 pm 


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PostPosted: Mon Oct 28, 2013 6:02 pm 
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Joined: Tue Oct 18, 2005 6:02 pm
Posts: 507
Location: The Netherlands
can anyone confirm this? Just ordered a pair of 52-38 Aero Qrings for my 110bcd Red Quarq (2012 edition)..

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