I have Shimano XT FC-M752 cranks (they're still going strong) and I'm thinking in trying a 2x9 setup, 40-26 o 42-28. I don't like hollowtech II XT cranks because their huge q-factor, and I like my actual 170mm q-factor.
When I need to change the middle ring I have some problems to find them, because "compatible" 104BCD Shimano rings don't fit in this cranks and they would need a little dremmel to fit them, only the specific middle ring or an old Deore 510 are compatible. It seems that 752 has a bit longer inner arm and many rings don't fit, and I think I could have problems when installing a big ring in the middle ring position.
Is there anyone with a 2x9 setup with this cranks? Any suggestions on wich rings to use?
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