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  1. #1
    L-I-V-I-N dtrain's Avatar
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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?
    "The older you do get, the more rules they're gonna try to get you to follow. You just gotta keep livin', man, L-I-V-I-N." - Wooderson

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  2. #2
    I drink your MILKSHAKE Raiyn's Avatar
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    The 10 Speed SRAM rings will work fine for your nine speed application.

  3. #3
    sch
    sch is offline
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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).

  4. #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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