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PostPosted: Fri Apr 04, 2014 3:50 am 
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Joined: Wed Feb 19, 2014 6:13 am
Posts: 55
I concur the record chain is excellent, and the rings are explicitly compatible with them... Just thought it's worth a shot as far as trouble-shooting to see if that changes things.
Also may be worth making sure that the derailleur is low enough and that it's at a good angle front-to-back (not side to side) which would be a feature of the frame... e.g. close to the rings towards the front of bike, but large gap at the tail of derailleur - this is unlikely to be a factor, but sometimes is on Compact setups...

Just guessing at this point though. Good luck!!


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PostPosted: Fri Apr 04, 2014 3:53 am 
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Joined: Tue Apr 17, 2012 11:20 am
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Last edited by Causidicus on Wed Jun 18, 2014 12:32 am, edited 1 time in total.

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Posted: Fri Apr 04, 2014 3:53 am 


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PostPosted: Sat Apr 05, 2014 4:14 pm 
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in the industry

Joined: Mon Apr 04, 2011 9:59 pm
Posts: 66
Location: Santa Cruz, CA
Hi folks...Adam from Praxis here.
This thread came up on my radar and I wanted to reach out.

We have a huge amount of customers with this exact setup and loving it, so I'm interested in what the possible issue is also.
Our rings on a Quarq (new and old Quarq) with Campy 11 has actually become a very common setup we've been helping people with.

One simple first fast step would be to please check the mounting. Believe it our not, we actually find that many have actually mounted our inner rings in the wrong timing position and also many times flipped the wrong way. Both of these will completely mess up the shifting.
This is one of our #1 calls/emails and is quickly fixed.
We're soon adding/updating the ring markings to make it less likely that someone accidentally mount them wrong.
Here is our mounting guide to follow - http://www.praxiscycles.com/wp-content/ ... unting.jpg

Other than checking that, like you guys mentioned in this thread...I'm very curious about the chain, the FD setup and the FD mount/braze on as we come across flexy mounts with frequency also.

Anyway...we're shifting geeks and just want to help out. So by all means email or call us and we'll for sure try and help shake down the potential issue.

Adam@Praxis

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Praxis Works
Manufacturer
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www.praxis-works.com


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PostPosted: Tue Apr 08, 2014 4:29 am 
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Joined: Sat Feb 23, 2008 6:33 pm
Posts: 239
the rings are indeed mounted correctly. i have sent pictures to Praxis customer service when they were first warranted to confirm this. i have had 3 different mechanics look at the FD and try as they might to get it to work without success.

crankset is Quarq Riken 170 53/39
chain is Campagnolo Record 11
1st bike was a Cannondale Evo with a Braze-On mount
2nd Bike is a Litespeed C1R with Braze-On mount.

this is my second set of rings, and although it works better than the first set, they are far from what i was expecting as far as shift quality. sometimes the chain will refuse to go from the 39 to the 53 unless i drop down a gear or 2 in the rear, shift back to the 39, and then shift again to the 53. i'm not impressed at all.


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PostPosted: Thu Jul 24, 2014 10:53 pm 
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Joined: Mon Jun 02, 2014 1:10 pm
Posts: 15
I have bb30 Quarq Riken (with Omnical). The shifting with my 10spd Force is problematic,the chain is having a really hard time to shift from small to big gear (front).

Changed to Praxxis Works and it became much worst! Changed to SRAM Red (hidden bolt) and it perform magically perfect.


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PostPosted: Fri Jul 25, 2014 5:41 am 
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Joined: Wed Jan 01, 2014 6:20 pm
Posts: 25
if the chain is having trouble to go from 39 to 53, why not just loosen the outer limiting screw on FD and increase abit cable tension. This ensures the FD goes the extra miles to bring the chain up to 53. Granted you won't be able to cross chain as much as before, but i remember campy have great FD trim feature.


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PostPosted: Fri Jul 25, 2014 11:25 am 
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Joined: Fri Jan 27, 2006 1:38 pm
Posts: 572
Location: Greater Pittsburgh
Parxis (52/36)/KMC X11SL chain/Quarq SRAM Red/SR EPS on my wife's Parlee Z5 SLi. Shifts like a dream!

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"Suddenly the thought struck me; my floor is someone elses ceiling" - Nils Ferlin


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PostPosted: Fri Jul 25, 2014 1:01 pm 
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Joined: Sat Jun 06, 2009 7:28 am
Posts: 479
The solution to your problems does not lie in purchasing more parts. You need to have your existing parts adjusted by a person who knows what they're doing. I suggest that whomever has tuned your front derailleur doesn't know what they're doing.


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PostPosted: Fri Jul 25, 2014 1:10 pm 
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Joined: Wed Nov 09, 2011 12:19 pm
Posts: 33
Location: Switzerland
Just to add another success Story.. after continous chain drops (switched chains, added k-edge) I mounted Praxis Rings on my EVO. No drops since then (did the last two races with this setup), and smooth effortless shifting.

Setup: Supersix EVO, Quarq Elsa, Campagnolo Super Record, KMC X11 SL..

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Supersix HiMod, Supersix EVO HiMod, CaadX, Lynskey R330, Lynskey Pro29, Yelli Screamy 29


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PostPosted: Fri Jul 25, 2014 1:25 pm 
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Joined: Mon Jan 30, 2012 8:57 am
Posts: 76
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No issuses here.. :smartass:


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