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  1. #1
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    Currently avail Shimano 22/32/44 chainrings to replace my M9 ones (FC-M570 crankset)?

    I know it's old material but I cannot believe it's impossible to find a replacement for these old M9/FC-M570 chainrings...

    It seems I won't find my original ones as they have been out of production for a while, and it's such a headache to make sure newer chainrings are 100% compatible, as I have read the Shimano product lines (especially the Deore one) can have unsuspected incompatibilities like the thickness of the chainrings, found out only at mounting time...

    Here in Brazil here two options I could find until now:

    - chainrings taken off of an original M590 crankset
    - FC-M770 chainrings

    My questions:

    1) Does anyone know if one of these options is 100% compatible with my FC-M570 crankset (respecting the chain alignment, etc.), or could suggest other recent Shimano chainrings?

    2) If that's the only option, I'll go for a change of my full crankset: in that case, what would be the closest currently available 9-speed square bracket Shimano crankset that would be comparable to my FC-M570 and that would be 100% compatible with my chain alignment?
    Last edited by ultimatebiker; 10-24-2015 at 08:43 AM.

  2. #2
    Never trust a fart
    Reputation: frdfandc's Avatar
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    If you can't find Shimano rings, go with Blackspire. I have used Blackspire with great success. They are not cheap, but are the best alternative to Shimano rings IMHO.

    Blackspire - SuperPro M970X Chainrings | Blackspire

  3. #3
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    Sorry for that but I made a mistake in my question, my bad.

    I have a FC-M570 crankset (Deore LX), not FC-M970 (XTR)... anything else in my post was correct.

    I edited my post to correct the mistake!

    I am now emailing Blackspire to see if they have compatible ones.

  4. #4
    Never trust a fart
    Reputation: frdfandc's Avatar
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    They do have compatible chain rings. You need 104/64 BCD rings.

    Blackspire - SuperPro 104/64 BCD Chainrings | Blackspire

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