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PostPosted: Fri Apr 12, 2013 11:37 pm 
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Joined: Fri Feb 17, 2006 12:42 am
Posts: 10
Anybody have experience with using an aftermarket chainring with shimano as I would like to know what brand, if any, 36 tooth chain ring is compatible with shimano 7900 crank? Thinking about upgrading to 9000 36/52 crankset but would like to demo the 36 on my bike first.


Last edited by atanger on Sat Apr 13, 2013 3:40 am, edited 1 time in total.

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PostPosted: Sat Apr 13, 2013 12:25 am 
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Joined: Sat Mar 24, 2012 4:13 pm
Posts: 229
I have had the Praxis 52/36 rings mounted on 7950 crankarms...these are 110 BCD and don't work on 7900 arms (130 bcd)

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Posted: Sat Apr 13, 2013 12:25 am 


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PostPosted: Sat Apr 13, 2013 12:41 am 
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in the industry

Joined: Mon Apr 04, 2011 9:59 pm
Posts: 66
Location: Santa Cruz, CA
a 38T is technically the smallest you can engineer on a 130BCD. Any smaller the CR bolt is directly in the tooth bed.

Adam@Praxis

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PostPosted: Sat Apr 13, 2013 3:39 am 
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Posts: 10
My bad I meant the 7950.


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PostPosted: Sat Apr 13, 2013 8:39 am 
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Joined: Mon Jan 15, 2007 5:27 pm
Posts: 390
Location: Switzerland
I own shimano's 36t. (110) from their CX cranks (fc-cx70).

Works a treat, but might be heavier than DA (but quite impossible to find though).


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