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  1. #1
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    Shimano 2008 FC-M970 (XTR) and FC-M770 Chainring Compatible?

    Does anyone know if the FC-M970 and FC-M770 Chainrings are compatible?

  2. #2
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  3. #3
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    I know that the 970 cranks support the 760 chainrings (middle and large). So my guess is that yes the 770''s will work too.

  4. #4
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    Quote Originally Posted by epiphreddy
    Does anyone know if the FC-M970 and FC-M770 Chainrings are compatible?
    Both are 104bcd, so they should be compatible. However both use an unusual middle ring (Ti/Composite on XTR, Steel/composite on M770 XT) that reportedly has some fit issues on normal 104bcd cranks, so there might be some interference with mounting the middle ring.

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