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Old 05-22-07, 12:19 PM   #1
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Sram/Shimano Compatability

I searched a few keywords and found several similar threads...but not the direct answer I'm looking for. So my apologies for another lame "will it work" thread.

I have a 9-speed 105 triple set-up. I'd been kicking around the idea of a compact crankset. I was able to pick up a Sram Rival compact for a good price...but now I'm not sure it'll actually work smoothly without changing out some other parts. My primary concern: the crankset (or at least the chainrings) are stamped 10-speed only.

I have a compact specific FD (FSA) that might help (better chance of working smoothly than the triple FD I would think)...but the chainrings have me concerned. And for the price of swapping out the chainrings, I'd probably rather sell the Rival set (hopefully for about what I paid with lesson learned) and go with something else. I'm assuming the new Tiagra-level version of Shimano's compact crankset comes with 9 speed rings?
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Old 05-22-07, 02:33 PM   #2
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The 10 Speed SRAM rings will work fine for your nine speed application.
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Old 05-22-07, 06:11 PM   #3
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In addition you will likely find the triple FD will work ok
with the compact as well. FSA rates their compact as
9/10 spd (both) and other posters here have found
their prior FD to work fine (various types).
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Old 05-25-07, 10:35 AM   #4
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I just put a SRAM Rival compact crank on my 9 speed Dura-Ace setup. I needed to change the FD, and I had to add chainring spacers to the large ring...when I was in the small ring, the chain rubbed against the large ring when using the 11t & 12t cogs. I did also put a 10 speed chain on, it didn't help much with the rubbing, but I do find the rear shifting to be smoother!?!?

Does anyone know if the "rubbing" issue on the compact crank exists with full 10 speed systems???
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