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Old 09-20-11, 09:47 PM   #1
dpt01
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Chainring Compatibility

So, I have a Shimano Compact 5750 105 crankset (50/34t) with a CN-5701 chain. From what I understand, I just can't put any old 9/10 speed chainring on there due to some strange combination of the new chainring spacing and the new asymmetrical chain in the current generation of Shimano groupsets. Anyway, I want to switch to a 50/36t. It's just gonna give a slightly nicer chainline in the small with a slightly less jarring change in cadence when I shift the front.

FSA's new "N10" chainrings are suppose to work with the 7900 and 6700 cranks. Can I put the 36t (which is designed to be used with the 46t for cyclocross) on and have it work fine? I suppose I could slap down 30 bucks and fine out, but I would like to see if anyone has actually done it.

http://www.universalcycles.com/shopp...s.php?id=31510
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Old 09-21-11, 12:03 AM   #2
commo_soulja
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On a two ring crankset the smaller ring is a dumb ring. Meaning it doesn't have shift ramps and pick up pins like the middle (3ring application) large ring do to aid in shifting. As long as you get a ring with the same BCD then you should be fine.

OT - you joined in 12/10 and you're finally posting? Lurk much?
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Old 09-21-11, 01:25 PM   #3
dpt01
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Any reason why this wouldn't have worked? http://forums.roadbikereview.com/shi...ts-195854.html.

I'm actually an active lurker of a forum that I registered to in 2001. Last post: 2006. Total number of posts: 43. I'm like the Clarence Thomas of internet forums.
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