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may
hma
doesn't seem to be DA, as DA has less notches for the wrench on the outside. also, it has the notches on both sides, whereas ultegra and downward have them only on the NDS.
i think you are better of with this one though - i had many bb-7700 units fubar'd but the sealed cartridge units hold up for ages (using a bb-5500 with my 7710 cranks and it is as smooth as ever - a bit less preload, tho.. :)